Open-source tools

We're tracking 557 of these, and 520 are still live today. 31 we couldn't reach — we don't claim those are dead.

Watching this group for 19 days · how we check

This week215 new arrivals6 stopped answering

Narrow it down

Developers98 Marketers6 Freelancers4 Students7 Job seekers13 Investors & traders2

ReDevOps – Agentic Runtime

Live

An open-source runtime for building and running production AI agent systems, for developers who don't want to hand-roll retrieval, memory, and execution logic.

Open sourceSelf-hosted

What to know▼

How it works: Handles retrieval, memory, model routing, and verification instead of hardcoded pipelines
What's different: Self-hostable, open-source, with governed execution including planning, verification, and replay
Best for: Developers building production AI systems in Python or Go

Watched for 3 days · last checked 2d ago

Skim

Live

Free, open-source, minimal, local-first email client for Windows with a native Rust core and optional bring-your-own-key AI drafting.

FreeWorks offlineOpen sourceNo tracking

What to know▼

How it works: native Rust/Tauri core, ~5MB installer, instant full-text search
What's different: minimal by design, zero telemetry, bring your own AI key
Pricing: free (MIT)
Best for: Windows users wanting a fast local email client

Watched for 5 days · last checked today

Murph

Live

A health-tracking AI that lives in iMessage, syncing wearables and bloodwork to run experiments on your habits and even book appointments for you.

Domain registered 4 months ago

Open source

What to know▼

How it works: Reads wearable data and bloodwork, runs experiments, sends family health roundups via iMessage
What's different: Can take real-world actions like calling to book appointments or reorder supplements

Watched for 3 days · last checked 2d ago

OpenSEO

Live

An open-source, cheaper Ahrefs alternative for keyword/backlink/site-audit research, connectable via MCP so an AI agent can run SEO work directly instead of a $100+/month subscription tool.

Open source

What to know▼

How it works: Provides keyword research, competitor research, backlinks, and site audits, connectable via MCP so an AI agent can work directly on SEO strategy and content.
What's different: Open source alternative to Ahrefs.
Pricing: Starting at $10/month instead of a $100+/month subscription.

Watched for 7 days · last checked 1d ago

Skeg

Live

A Rust-built, open-source vector database optimized to pack far more vectors per GB of RAM without losing recall, for teams running many-tenant deployments where memory is the bottleneck.

Open source

What to know▼

How it works: Multi-tenant architecture purpose-built for RAM efficiency at high tenant density.
What's different: Prioritizes memory efficiency over other tradeoffs; written in Rust.
Best for: High-density, many-tenant vector search deployments.

Watched for 1 day · last checked 1d ago

Panguard.AI

Live

Open-source malware scanner and runtime guard for AI agents

Domain registered 4 months ago

FreeWorks offlineOpen source

What to know▼

How it works: Vets AI agent skills and MCP servers for malicious behavior before install, scans what's already installed, and blocks hijack attempts at runtime, using 768 open ATR rules.
What's different: Scanned 96,096 published skills and found 751 malicious; rules already merged into Microsoft, Cisco, MISP, and OWASP tooling.
Pricing: Free, MIT licensed, fully on-device.

Watched for 7 days · last checked 1d ago

Guitariz Studio

Live

A free open-source browser music lab that detects chords from audio and separates vocals from instrumentals, for musicians learning songs by ear.

Domain registered 6 months ago

FreeNo sign-upOpen source

What to know▼

How it works: AI chord recognition on MP3/WAV and stateless vocal/instrumental separation
Pricing: free, open source, no registration
Best for: musicians learning or transcribing songs

Watched for 5 days · last checked today

CodexUsageBar

Live

A free, open-source macOS menu bar app that tracks your ChatGPT Codex usage limits in real time for developers.

Domain registered 8 days ago

FreeOpen source

What to know▼

How it works: Lives in the macOS menu bar and shows current Codex usage at a glance.
Pricing: Free and open-source.

Watched for 6 days · last checked today

PBOM Spec by Eqo

Live

An open-source spec for tracking, versioning and securing AI prompts and models across a team's workflows.

Open source

What to know▼

How it works: An open-source spec to track, version, and secure AI prompts, models, and parameters, bringing supply chain security to agentic code.

Watched for 7 days · last checked 1d ago

LiveDemo

Live

Turns a workflow recording into a shareable interactive product demo, replacing paid tools like Storylane or Navattic for teams doing sales/marketing demos.

Open source

What to know▼

How it works: Captures a workflow recording, adds AI voiceovers and personalized text, then publishes it as a shareable interactive demo (link, embed, GIF, or video) with engagement tracking and lead capture.
What's different: Open-source alternative to Storylane, Navattic, and Arcade.
Best for: Sales and marketing teams building product demos for their website, docs, or outreach.

Watched for 8 days · last checked 1d ago

WebSlurp

Live

A free, open-source Chrome DevTools extension for testing APIs — capture, inspect, edit, and replay HTTP requests without an external proxy, plus a quick header and secrets audit.

FreeOpen source

What to know▼

How it works: A Chrome DevTools extension that captures, inspects, edits, and replays HTTP/HTTPS requests without an external proxy, plus a Quick Security Check that audits headers and flags secrets or PII.
What's different: Works without needing to route traffic through an external proxy, unlike typical API testing setups.
Pricing: Free and open-source.
Best for: Developers testing API security directly inside Chrome DevTools.

Watched for 9 days · last checked 2d ago

Lexicon

Live

A free open-source desktop writing assistant that checks grammar and rewrites text entirely offline, without sending drafts to the cloud.

FreeWorks offlineOpen source

What to know▼

How it works: Local grammar checking plus 15 text tools like rewrite, tone shift, and summarize, all offline
What's different: Includes a rich editor with LaTeX math and structured tables
Pricing: Free, open-source under MIT license

Watched for 3 days · last checked 2d ago

Keepresso

Live

A free, open-source macOS menu-bar app that keeps your Mac awake during downloads, renders or AI agent runs, with smart triggers and closed-display mode.

FreeOpen source

What to know▼

How it works: A native macOS menu-bar app that keeps your Mac awake during downloads, renders, or AI agent runs using smart triggers, timed sessions, and a closed-display mode.
Pricing: Free and open source.
Best for: Mac users running long downloads, renders, or agent tasks that need the machine to stay awake.

Watched for 11 days · last checked 2d ago

StatBar. Live scores in your menu bar

Live

A macOS menu bar app that shows live football scores and match events without opening a browser.

Open source

What to know▼

How it works: Follows major leagues and competitions with favorite teams and live notifications in the Mac menu bar.
Pricing: Open source.
Best for: Football fans who spend their day at their computer.

Watched for 10 days · last checked 1d ago

SynapseClean

Live

A free, open-source Chrome extension that cleans up copied web text into compact prompts, processing everything on-device rather than a server. For anyone who pastes a lot of text into AI chat tools.

Domain registered 23 days ago

FreeWorks offlineOpen source

What to know▼

How it works: A Chrome extension that compacts messy web copy into clean AI prompts, processing everything on-device.
What's different: Free, open source, and 100% on-device rather than sending text to a server; optional Gemini Nano support.
Pricing: Free.
Best for: People who frequently paste web text into AI chat tools and want it cleaned up first.

Watched for 11 days · last checked 2d ago

File Viewer

Live

An Apache-2.0, offline-first toolkit that renders in-browser previews of Office, PDF, CAD and other files without a server-side conversion step. For developers embedding document viewers in self-hosted apps.

Domain registered 1 month ago

Works offlineOpen sourceSelf-hosted

What to know▼

How it works: A browser-native toolkit that renders read-only previews of Office, PDF/OFD, CAD, archive, email, diagram, 3D, media and data files (206 extensions across 24 pipelines) without a mandatory server-side conversion step.
What's different: Apache-2.0 licensed and offline-first; components can be self-hosted and used across Vanilla JS, React, Vue, Svelte and jQuery.
Best for: Developers embedding document/file preview into private or internal web apps.
Watch out: Read-only fidelity varies by file format.

Watched for 12 days · last checked 1d ago

LLMSlim

Live

An open-source Python library that compresses LLM prompts and context to cut token costs while preserving instructions.

Open source

What to know▼

How it works: Compresses prompts, RAG document contexts, and multi-turn chat logs in one line of code.
Pricing: Open-source Python package.
Best for: Developers who want to cut LLM token costs 40-70% without losing instruction fidelity.

Watched for 10 days · last checked today

AEGIS

Live

A self-hosted, MIT-licensed framework for running your own local-LLM AI agents over your tasks, money, knowledge and homelab data, built for developers who want to fork and customize it rather than use a hosted SaaS.

Domain registered 4 years ago

Open sourceSelf-hosted

What to know▼

How it works: A self-hosted platform where named agents run durable Temporal workflows over your own data (tasks, money, knowledge, homelab alerts), asking for a decision only when they truly need one.
What's different: Local-LLM-first and MIT-licensed, designed to be forked and customized rather than used as a hosted SaaS.
Pricing: Open source (MIT-licensed).
Best for: Developers who want to self-host and customize their own AI agent framework over personal data.

Watched for 12 days · last checked 1d ago

Seekstone

Live

An open-source MCP server that lets Claude search your Obsidian vault directly from disk without a plugin or uploading your notes.

Domain registered 1 month ago

Open source

What to know▼

How it works: reads vault from disk, returns ~2KB ranked excerpts instead of full notes, nothing leaves your machine
What's different: open source with reproducible benchmarks

Watched for 4 days · last checked today

OpenChatCut

Live

Open-source, local-first AI video editor with a real multitrack timeline where Codex, Claude, and MCP agents edit alongside you.

FreeWorks offlineOpen source

What to know▼

How it works: AI agents work on a real multitrack timeline locally
What's different: local-first, editable exports, open alternative to ChatCut
Pricing: free (AGPL)

Watched for 5 days · last checked today

HoneyWire

Live

An open-source deception (honeypot) platform for security teams; the listing gives little detail beyond that positioning.

Domain registered 1 month ago

FreeOpen source

What to know▼

How it works: An open-source deception (honeypot) platform for security teams.
Best for: Security teams and developers who want an open-source deception/honeypot tool.

Watched for 13 days · last checked 1d ago

Second Brain for AI v2

Live

An open-source, self-hosted memory layer that links related facts across Claude, ChatGPT, Cursor and Codex via MCP. Built for developers comfortable self-hosting on Cloudflare, not a plug-and-play tool.

Open sourceSelf-hosted

What to know▼

How it works: A memory layer that remembers projects, people, decisions and preferences across Claude, ChatGPT, Cursor, Codex and any MCP client, automatically linking related memories and following those connections during recall.
What's different: Open source and self-hosted in your own Cloudflare account, and distinguishes settled decisions from drafts/stale context.
Best for: Developers comfortable self-hosting on Cloudflare who want a shared memory layer across multiple AI tools.

Watched for 14 days · last checked 2d ago

Dim0

Live

An open-source infinite canvas that combines notes, diagrams and an AI agent that writes results directly onto the board — built to replace juggling Notion, Excalidraw and a chat window.

Open sourceSelf-hosted

What to know▼

How it works: An open-source, real-time collaborative canvas. Notes, hand-drawn diagrams and interactive mini-apps live as nodes on one board; an AI agent reads the board, searches the web, and writes results back as new nodes instead of a chat reply.
What's different: Replaces switching between Notion for notes, Excalidraw for diagrams and a separate AI chat window — everything, including the agent's output, lands on the same canvas.
Best for: Teams and individuals who think visually and want an AI agent's output to live alongside their own notes and diagrams, not in a separate chat log.

Watched for 19 days · last checked 1d ago

LingoCord

Live

An open-source Discord extension that translates messages using your own translation API key, built privacy-first and developer-friendly. Really for technically comfortable users willing to set up their own API key.

Data stays with youOpen source

What to know▼

How it works: A Discord extension that translates messages using your own translation API key.
What's different: Open source and privacy-first — translation runs through your own API key rather than a shared third-party service.
Best for: Technically comfortable Discord users willing to set up their own translation API key.
Watch out: Requires bringing and configuring your own API key to work.

Watched for 13 days · last checked 1d ago

OpenLiveWalls

Live

A macOS menu-bar app that turns your own local video files into live wallpapers, fully offline and open-source with no account or cloud step.

No sign-upWorks offlineOpen sourceNo tracking

What to know▼

How it works: A macOS menu bar app that turns local video files into live desktop wallpapers, and converts/patches videos for macOS's native lock screen wallpaper support.
What's different: Fully open-source, offline and private — no accounts, cloud or telemetry — unlike commercial live-wallpaper alternatives.
Best for: macOS users who want live wallpapers from their own video files without sending anything to the cloud.

Watched for 12 days · last checked 1d ago

isready.ai — Is your website ready for AI?

Live

Scans your site the way AI crawlers like GPTBot and ClaudeBot actually see it, scores 32 checks, then an AI assistant walks you through fixes, including on WordPress.

Open source

What to know▼

How it works: Scans a website the way AI crawlers like GPTBot and ClaudeBot actually see it (they don't run JS), running 32 checks and producing a 0-100 score in about 5 seconds; an AI assistant then walks non-developers through fixes, including on WordPress.
What's different: Open source with a CLI, and built specifically around what AI crawlers see rather than standard SEO checks.
Best for: Site owners, including non-developers on WordPress, worried their site is invisible to AI crawlers despite ranking well on Google.

Watched for 16 days · last checked 1d ago

Pandia

Live

Native desktop app for opening and editing multi-gigabyte JSON files instantly, for developers who hit size limits in browser-based JSON viewers.

FreeWorks offlineData stays with youOpen source

What to know▼

How it works: Opens huge files with no upload, shows JSON as Tree, Code, Grid, Graph, or Compare views, generates types for 9 languages.
What's different: Handles multi-gigabyte files offline where most JSON tools choke or require upload.
Pricing: Free
Watch out: Desktop-only (macOS, Windows, Linux).

Watched for 4 days · last checked today

Spark UI

Live

An open-source React component library of prebuilt UI pieces for developers building web app frontends, rather than a full app framework.

Open source

What to know▼

How it works: An open-source library of prebuilt React components and interaction building blocks for product frontends.
Best for: Developers building web app frontends who want ready-made React components instead of building from scratch.

Watched for 13 days · last checked 2d ago

LocalMode

Live

An open-source toolkit for building AI features — chat, RAG, speech, vision — that runs entirely in the browser with no servers and no data leaving the device. Built for developers.

Domain registered 7 months ago

Data stays with youOpen source

What to know▼

How it works: An open-source toolkit for running AI entirely in the browser: LLM chat across 76 models, RAG and vector search, Whisper and Kokoro speech, and vision, with no server or API key required. Runs on WebGPU with a WebAssembly fallback.
What's different: Data never leaves the device, and it ships a zero-dependency core plus a shadcn UI registry of 107 components and 36 installable blocks for building on top of it.
Pricing: Open source (MIT license).
Best for: Developers building browser-based AI features without standing up servers or managing API keys.

Watched for 11 days · last checked today

CortexPrism

Live

An open-source, self-hostable runtime for running AI agents across 24 LLM providers, with an MCP plugin marketplace and sandboxed code execution — built for developers.

Open sourceSelf-hosted

What to know▼

How it works: An open-source, self-hostable runtime for running AI agents, with a 5-tier memory system, support for 24 LLM providers, an MCP plugin marketplace, and sandboxed code execution; installs with one command.
What's different: MIT-licensed and self-hostable with a plugin marketplace, rather than a closed hosted agent platform.
Pricing: Open source, MIT license.
Best for: Developers who want to run and customize AI agents across multiple LLM providers on their own infrastructure.

Watched for 12 days · last checked 6d ago

Pipelock

Live

Local firewall binary that sits between AI agents and the network to block secret leaks, prompt injection, SSRF, and MCP tool poisoning, for developers running autonomous agents, producing a signed offline-verifiable receipt instead of blind trust.

No sign-upWorks offlineOpen source

What to know▼

How it works: A single Go binary scans every outbound request from an agent and writes a signed receipt you verify offline against a published key when it blocks something.
Pricing: Apache 2.0, install via brew.
Best for: Developers whose AI agents have shell access, secrets, and an open line to the internet.

Watched for 6 days · last checked today

Sim

Live

An open-source workspace for building and connecting AI agent workflows to 1,000+ integrations and LLMs; a developer/maker tool rather than a no-code product.

Open source

What to know▼

How it works: An open-source workspace for building agentic workflows, connecting AI agents to 1,000+ integrations and LLMs.
What's different: Open source.
Best for: Developers building custom AI agent workflows across many integrations.

Watched for 16 days · last checked 1d ago

cngx

Live

A CLI that actually runs your test suite before letting an AI coding agent's merge-ready claim through, catching agents that say tests passed when they didn't.

Open source

What to know▼

How it works: A CLI that reads an AI coding agent's claim that tests passed, actually runs your real checks (pytest, npm test, go test, etc.), and blocks the merge if the agent's story doesn't match the command output.
What's different: The verdict comes from real command output, not a regex match on the agent's claimed text.
Best for: Developers using AI coding agents who want a guardrail against merge-ready claims that were never actually tested.

Watched for 15 days · last checked 2d ago

Capsomnia

Live

Repurposes the Caps Lock key as a physical sleep-prevention switch so long-running builds, agents, or SSH sessions survive a closed MacBook lid.

FreeNo sign-upOpen source

What to know▼

How it works: Turns Caps Lock into a physical switch that keeps your MacBook awake; light shows active state.
Pricing: Free and open source.
Watch out: Requires Caps Lock not already assigned to something else.

Watched for 1 day · last checked 1d ago

Caw

Live

Web-based terminal multiplexer for monitoring and controlling multiple AI coding agent sessions, including on mobile.

Domain registered 13 days ago

Open source

What to know▼

How it works: A web terminal multiplexer for monitoring and interacting with multiple AI agent sessions (OpenCode, Claude Code, Codex, Copilot, etc.), including a Kanban board, file browser, push notifications, and on-demand git worktrees.
What's different: Open source and built to work well on mobile.

Watched for 3 days · last checked 3d ago

Motionly

Live

Open-source AI motion graphics editor that generates editable animation files instead of rendered video.

Domain registered 4 days ago

Open source

What to know▼

How it works: Generates editable motion-graphics files, instead of rendered video, that you can refine visually or in code.
What's different: Open-source and structured so animations are versionable and reusable across developers, designers, and AI agents.

Watched for 3 days · last checked 3d ago

AgentLoop

Live

Restarts a fresh Codex worker and critic each cycle to build, test, and fix code against a saved rubric.

Domain registered 5 days ago

Open source

What to know▼

How it works: Starts a fresh Codex worker and critic every cycle against a saved GUIDELINES.md rubric; failures become concrete fix notes for the next cycle.
What's different: Open source and zero-dependency Node.js, runs local, sandboxed, and cancellable from a dashboard.

Watched for 3 days · last checked 3d ago

Megaphone

Live

Free open-source Mac dictation app that types cleaned-up text into any app entirely on-device, no account needed.

FreeNo sign-upWorks offlineOpen source

What to know▼

How it works: Hold a key, speak, on-device model transcribes and cleans up fillers/self-corrections
What's different: 100% on-device, no account or server required
Pricing: Free, MIT-licensed

Watched for 3 days · last checked 3d ago

HOL Guard

Live

Free open-source firewall that sits between AI agents and your systems to block risky actions like deleting production data.

Domain registered 24 years ago

FreeOpen source

What to know▼

How it works: Intercepts agent actions before execution and blocks high-risk ones
Pricing: Free, open source
Best for: Developers running AI agents with system access they want to constrain

Watched for 3 days · last checked 3d ago

ADE

Live

Syncs your existing coding-agent subscriptions across web, desktop, terminal and mobile so you can start a session on one device and continue on another.

FreeOpen source

What to know▼

How it works: Chats sync across all surfaces; runs on web, desktop, terminal, and mobile.
Pricing: Free forever, open source.
Best for: Developers who already pay for multiple coding-agent subscriptions and switch devices often.

Watched for 1 day · last checked 1d ago

Redential

Live

Tool that reads your local git history to build a verifiable credential of what you've actually built, without exposing NDA-protected code.

FreeOpen source

What to know▼

How it works: Reads git history locally, generates a profile of your work, then you defend it live in Q&A
What's different: Never shares actual code, only derived claims you approve first
Pricing: CLI is free and open source
Best for: Developers and recruiters wanting proof of work beyond a resume

Watched for 4 days · last checked today

ditto.site

Live

Open-source tool that clones any public website into clean, componentized Next.js or Vite code deterministically.

Domain registered 28 days ago

FreeOpen source

What to know▼

How it works: point it at a URL, get faithful componentized code in minutes
What's different: fully deterministic so fast, cheap, consistent
Pricing: free
Best for: developers rebuilding or copying web UIs

Watched for 5 days · last checked today

Alano Mascot

Live

A free open-source cat mascot for apps that stays visually consistent across new poses and scenes, for builders who don't want a generic AI-generated look.

FreeOpen source

What to know▼

How it works: Pins each new generation to fixed reference images and a locked style prompt to keep the mascot consistent.
Pricing: Free for commercial use.
Best for: Developers adding a consistent character to onboarding flows or chatbots.

Watched for 6 days · last checked today

PenguinHarness

Live

Open-source SDK that lets AI agents build, evaluate, and optimize other agents cheaply.

Domain registered 10 days ago

Open source

What to know▼

How it works: An SDK that lets AI agents build, evaluate, and optimize other agents, supporting 1,000+ models, reusable skills, and automatic data generation.
What's different: Open source.
Pricing: About $0.02 to build a complete RAG application with one prompt.

Watched for 3 days · last checked 3d ago

Chimlo

Live

Free open-source macOS app that shows Codex and Claude Code agent status in the MacBook notch so you don't have to hunt through terminals.

FreeOpen source

What to know▼

How it works: Notch UI shows working/waiting/finished/failed agent states, lets you answer prompts inline
Pricing: Free, open source
Best for: Developers running multiple coding-agent sessions at once

Watched for 3 days · last checked 3d ago

OASIS-EASY

Live

An open-source AI agent platform for automating office and personal tasks — describe what you need in plain language and it builds a specialized assistant, no coding required.

Open source

What to know▼

How it works: An open-source AI agent platform where you create specialized 'office assistant' agents by describing what you need — e.g. one for the employee database, one for leave requests, one for expenses — and interact with them over WhatsApp, Telegram, or a native chat interface.
What's different: Open source and conversational (chat with agents like a colleague) instead of navigating a traditional ERP's pre-built interfaces.
Pricing: Open source.
Best for: Small offices wanting to automate workflows like HR, expenses or leave requests without learning a complex ERP UI.

Watched for 13 days · last checked 7d ago

MacStats

Live

A native macOS menu bar monitor showing CPU, RAM, network, and temperature at a glance, for Mac users who want lightweight system stats.

Open source

What to know▼

How it works: Pure Swift menu bar app, no Xcode project or dependencies
What's different: filters system daemons, rolls helper processes into their parent app
Pricing: open source, MIT licensed
Best for: macOS users wanting a lightweight system monitor

Watched for 5 days · last checked today

Fortress

Live

A stealth browser engine that lets scraping and automation scripts avoid bot detection, for developers running Playwright or Puppeteer agents.

Open source

What to know▼

How it works: Drop-in Chromium that reads as ordinary Chrome to detection systems
What's different: keeps existing Playwright/Puppeteer code unchanged, open BSD-3 engine
Best for: developers building scrapers or web-acting AI agents

Watched for 5 days · last checked today

handmux—Your coding agent, on your phone

Live

Drive your coding agent from your phone via the same live tmux session as your computer, with git diffs, site preview, and thumb approvals.

Domain registered 29 days ago

Open sourceSelf-hosted

What to know▼

How it works: mirrors your tmux session to your phone, zero install
What's different: agents like Claude Code push when they need you; approve with a thumb
Pricing: open-source (AGPL)

Watched for 5 days · last checked today

Randomeower

Live

An open-source discovery platform for random generators to find something fun or useful in seconds.

Domain registered 2 years ago

Open source

What to know▼

How it works: An open-source discovery platform of random generators for finding something fun, useful, or unexpected in seconds.

Watched for 4 days · last checked today

kritt.ai

Live

An open-source platform for orchestrating LLM-based security research pipelines across vulnerability discovery and code analysis.

Domain registered 8 months ago

Open source

What to know▼

How it works: chains LLMs and custom agents into reusable security research workflows
Pricing: open source

Watched for 4 days · last checked today

SUUR Things

Live

A free, open-source MCP server that lets AI agents safely read and write your Things 3 tasks, plus adds Kanban, matrix and time-blocking views Things 3 lacks.

FreeNo sign-upWorks offlineOpen source

What to know▼

How it works: reads are read-only, writes go only through Things' official URL scheme so agents can't corrupt data
Pricing: free, open source (MIT), no cloud or account
Best for: Things 3 users on macOS who want AI task management without risking their data

Watched for 4 days · last checked today

Attestari

Live

Open-source memory storage for AI agents where every fact has provenance and deletion is cryptographically provable and auditable.

Open source

What to know▼

How it works: forget() destroys the data's key and issues a signed deletion certificate
What's different: reconciles GDPR deletion requirements with EU AI Act record-keeping
Pricing: open source (Apache-2.0), runs on plain Postgres

Watched for 4 days · last checked today

ClawLite

Live

A personal AI assistant that runs fully on your own machine via local models, chatting through Telegram with Gmail/Calendar access.

Open sourceNo subscription

What to know▼

How it works: local models handle chat, memory and web search; cloud used only as a fallback
What's different: requires human approval for actions and runs in a Docker sandbox
Pricing: no subscription, open source (Apache 2.0)
Best for: Windows users wanting a private, local AI assistant

Watched for 4 days · last checked today

Supermux

Live

A self-hosted development environment for running coding agents (Claude Code, Codex, Cursor, etc.) from desktop or phone.

Domain registered 1 month ago

No sign-upOpen sourceSelf-hosted

What to know▼

How it works: start a task on desktop, get pushed for input, review diffs and ship from mobile
Pricing: MIT license, self-hosted, no vendor cloud or account
Best for: developers who want to manage agent sessions across devices

Watched for 4 days · last checked today

Reame

Live

A self-hosted LLM inference server that runs on cheap CPU hardware, for developers who want local AI inference without a GPU.

Open sourceSelf-hosted

What to know▼

How it works: CPU-first inference on llama.cpp with an OpenAI-compatible API
What's different: caches prompts and past generations so repeat requests cost less
Pricing: MIT licensed, works on a €5 VPS or free-tier ARM box
Best for: developers running narrow, repetitive AI workloads on cheap hardware

Watched for 5 days · last checked today

ADA

Live

An open-source data analyst that cleans a CSV or Excel file, builds a dashboard, and shows the exact calculation behind every chart or forecast.

Open source

What to know▼

How it works: Every chart/forecast traces to a readable pandas calculation
What's different: optional AI never sees your row data, only column schema; works with no API key
Pricing: open source, MIT licensed
Best for: anyone who wants an auditable alternative to a black-box data analyst tool

Watched for 5 days · last checked today

WorldFoundry

Live

An open-source framework for running inference and evaluation on generative world-model AI (video, 3D/4D, embodied agents) via CLI/TUI/Studio interfaces — research infrastructure for AI developers, not an end-user app.

Open source

What to know▼

How it works: An open-source framework that unifies inference and evaluation for generative world-model AI, supporting video generation, interactive worlds, 3D/4D representations and embodied models through TUI, CLI and Studio interfaces, with a growing collection of integrated models and 58 benchmarks.
What's different: Unifies inference and evaluation for world models under one workflow instead of requiring separate tooling per model type.
Pricing: Open-source.
Best for: AI researchers and developers working on world models who need a common infrastructure for running and benchmarking them.

Watched for 15 days · last checked 2d ago

SpatiumDDI

Live

An open-source DDI platform unifying DNS, DHCP, and IP address management behind a FastAPI control plane and React UI.

Open source

What to know▼

How it works: Runs its own BIND9, PowerDNS, and Kea service containers managed through a FastAPI backend and React front end.

Watched for 6 days · last checked today

Neuro-Stack

Live

Free open-source tool that checks whether supplement ingredients in your stack conflict, using live PubMed and PubChem clinical trial data.

FreeOpen source

What to know▼

How it works: Cross-references supplement ingredients against live clinical trial databases
Pricing: Free, open-source
Best for: Biohackers and health enthusiasts checking supplement stack safety

Watched for 5 days · last checked today

TraceArena

Live

An open-source platform for simulating multi-agent scenarios like markets, city governance, or logistics.

Open source

What to know▼

How it works: Define goals, resources, rules and tools, load a scenario pack, configure your LLM, and let multiple agents compete inside one simulated world.
What's different: Open-source; every observation, decision, action, and consequence is visible and replayable.

Watched for 5 days · last checked today

Toolport

Live

A local gateway that lets every AI coding client share one set of MCP server connections instead of configuring each tool separately, cutting how many tools your agent has to load.

FreeNo sign-upWorks offlineOpen source

What to know▼

How it works: A local-first, open-source gateway. You set up and authenticate each MCP server once, and every connected AI client — Claude, Cursor, VS Code, Codex — shares that same connection instead of you configuring it per tool.
What's different: Claims up to 91% less tool-token overhead by giving an agent a handful of meta-tools instead of loading hundreds of individual tool definitions; API keys stay in the OS keychain.
Pricing: Free, open source, no sign-up.
Best for: Developers running multiple AI coding clients against the same set of MCP servers who don't want to re-authenticate each one separately.
Watch out: The '91% overhead cut' figure is the product's own claim; we haven't independently benchmarked it.

Watched for 19 days · last checked 1d ago

Pylva

Live

Tracks the real infrastructure cost of each customer for AI agent builders, so they can set margin caps per customer.

Open source

What to know▼

How it works: SDK-only telemetry tracks LLM and non-LLM usage per customer
What's different: open source, reactive rules like per-customer cost caps
Pricing: open source
Best for: builders of AI agent products billing by usage

Watched for 5 days · last checked today

Codewalk

Live

Reviews pull requests and maps code dependencies so developers can understand large codebases before refactoring, without indexing delay.

Domain registered 1 month ago

Open sourceSelf-hosted

What to know▼

How it works: Builds a dependency graph and semantic index, cites source in answers
What's different: instant PR reviews with no indexing step, open source and self-hostable
Pricing: open source
Best for: developers working in large or unfamiliar codebases

Watched for 5 days · last checked today

Insight

Live

Self-hosted, cookieless, open-source analytics with a live visitor map, Stripe revenue attribution, and tracking of which pages AI crawlers read.

Data stays with youOpen sourceSelf-hosted

What to know▼

How it works: run it on your server; real-time map, Stripe channels, AI-crawler pages
What's different: no cookies or consent banner, data never leaves your machine
Pricing: MIT

Watched for 5 days · last checked today

Claude Garage

Live

A local terminal dashboard that manages multiple Claude Code agent sessions in one view, with worktree isolation and diff review, instead of juggling separate windows.

Works offlineOpen source

What to know▼

How it works: Runs locally and open source; install with a single npx command, with all sessions shown on one live terminal wall.
Best for: Developers running several Claude Code agents at once.

Watched for 6 days · last checked today

TabChat

Live

A self-hostable tool that turns your open browser tabs into a searchable, chat-queryable knowledge base by vectorizing their content.

Open sourceSelf-hosted

What to know▼

How it works: Captures open-tab content, vectorizes it with FAISS, and answers natural-language questions across everything you have open.
Best for: Developers who want to search across many open tabs without a hosted service.

Watched for 6 days · last checked today

TenTags Studio

Live

An open-source visual table editor with a Python DSL that exports to HTML, PDF, and Excel, for developers automating dashboards and reports without hand-writing layout code.

Open sourceCan export my data

What to know▼

How it works: A live preview grid stays bidirectionally synced with Python code via an AST; design visually or write code and both update.
Best for: Developers automating BI dashboards, KPI cards, Gantt charts, or heatmaps.

Watched for 6 days · last checked today

im-bot

Live

A messaging platform where AI agents are added like contacts and join group chats with humans, for teams who want multi-agent collaboration inside a shared chat thread instead of separate agent tools.

Open source

What to know▼

How it works: Add agents by invite code; persistent per-room agent sessions with full context; connect any LLM via an open-source connector.
What's different: In-chat model switching, file sharing, 8-language support built in.

Watched for 1 day · last checked today

bpad

Live

An open-source encrypted note-taking PWA that encrypts notes client-side before sync, for people who want their notes unreadable to the server even in the cloud.

Works offlineData stays with youOpen source

What to know▼

How it works: Notes encrypted in-browser with Argon2id + AES-256-GCM before leaving the device; only ciphertext reaches the server.
What's different: Works offline across devices while staying private.

Watched for 1 day · last checked today

nMEMORY

Live

A local, single-file memory store for coding agents over MCP that cites its sources and abstains rather than hallucinating when it lacks evidence.

Open source

What to know▼

How it works: One Rust binary, one SQLite file, zero network, talks to agents over MCP.
Pricing: Open source, AGPL-3.0.
Watch out: Abstains instead of answering when there's no evidence.

Watched for 1 day · last checked today

Sanwo

Live

An open-source SDK that unifies multiple payment providers (Paystack, Flutterwave, Razorpay, Monnify, Interswitch) behind one API, instead of integrating each provider separately across web, mobile, and no-code platforms.

FreeOpen source

What to know▼

How it works: Native SDKs for React, Vue, Svelte, React Native, Flutter, iOS, Android, plus no-code plugins for Shopify, WordPress, Webflow, Wix, Squarespace.
Pricing: Free forever, Apache-2.0 licensed.

Watched for 1 day · last checked today

Streaming Auto Pause/Resume

Live

A free, open-source utility that pauses Netflix or Prime Video the moment you switch away and resumes when you return, with no tracking or server.

Open sourceNo tracking

What to know▼

How it works: Pauses Netflix or Prime Video the moment you switch to another app, tab, desktop space, or lock your screen, and resumes only if it was the one that paused it — a pause you make yourself stays paused.
What's different: Only resumes a pause it caused itself, so manually pausing on purpose won't get auto-resumed.
Pricing: Open source, no stated price.
Best for: People who frequently step away from Netflix or Prime Video mid-episode and want it to pause automatically without server-side tracking.
Watch out: No tracking, no analytics, no servers, per the product's own description.

Watched for 17 days · last checked 1d ago

NextJS Mailtrap SaaS Starter

Live

An open-source Next.js starter kit with auth, Stripe billing, and Mailtrap email already wired up, for developers bootstrapping a SaaS.

Open source

What to know▼

How it works: Pre-built scaffolding for auth, multi-tenancy, Stripe billing, and transactional email via Mailtrap
Best for: Developers and indie hackers starting a new SaaS project
Watch out: Blank-slate scaffolding, not a finished product

Watched for 4 days · last checked today

BDFL - Benevolent Delegator for LLMs

Live

Open-source terminal supervisor that manages planning and worker AI agents for Codex, Claude Code, and Ollama sessions.

Open source

What to know▼

How it works: An open-source terminal supervisor where a planning agent proposes versioned plans you approve, then isolated worker agents implement the work while it handles scheduling, review, and recovery.

Watched for 3 days · last checked 3d ago

Aming Claw

Live

Open-source governance layer that keeps long-running AI coding agents on track with verified state and auditable handoffs.

Open source

What to know▼

How it works: Verifies a long-running AI agent's state and pushes one valid next action, using a graph-backed backlog with independent worker and QA roles and auditable bypasses.
What's different: Open-source governance layer aimed at preventing agents from drifting during long-running work.

Watched for 3 days · last checked 3d ago

Paintlet

Live

An open-source native macOS paint app that reproduces Windows 11 Paint's classic toolset, with no AI features.

Open source

What to know▼

How it works: Reproduces Windows 11 Paint's classic toolset — pencil, brush, shapes, curve, flood fill, text — as a native macOS app.
Pricing: MIT license, open source.
Watch out: No AI features; macOS only.

Watched for 7 days · last checked 1d ago

Statewave

Live

An open-source, self-hostable memory layer for AI agents that keeps episodic and semantic context within LLM token limits across sessions. For developers, not an end-user app.

Domain registered 3 months ago

Open sourceSelf-hosted

What to know▼

How it works: An open-source, self-hostable memory runtime for AI agents providing durable episodic and semantic memory, with ranked retrieval and token-bounded context bundles designed for LLM applications.
What's different: Treats memory as a first-class primitive that persists across sessions rather than an afterthought within a single conversation.
Best for: AI/ML engineers building autonomous agents with frameworks like LangChain, CrewAI or AutoGen.

Watched for 12 days · last checked 6d ago

FreeCustom.Email

Live

Instant, no-signup temporary email aliases with rotating domains to dodge blacklists, plus a public API for developers who want to build it into their own workflows.

FreeNo sign-upData stays with youOpen source

What to know▼

How it works: Creates custom, instant temporary email aliases (any inbox name) without sign-up, receiving emails in real-time from multiple rotating domains to avoid blacklists; also offers a public API and open-source frontend.
What's different: Rotating domains to avoid blacklists, plus no popups, timers, or tracking, unlike traditional temp mail tools.
Pricing: Free.
Best for: People needing disposable email for sign-up verifications or testing, and developers who want to build disposable email into their own workflows via the API.

Watched for 13 days · last checked 7d ago

Sindook Steward

Live

An open-source local tool for planning and executing encrypted-file key rotation with AI-assisted threat interpretation and policy controls.

Open source

What to know▼

How it works: An open-source local tool that turns recipient changes into reviewable key-rotation plans, with AI interpreting threat signals while deterministic policy controls approval and execution.
What's different: Keys, plaintext, and ciphertext never pass through the model; includes a bundled post-quantum sample vault run with Docker.

Watched for 3 days · last checked 2d ago

Aether Canvas

Live

A canvas tool where dropped documents are read by AI to auto-build a live workspace of dashboards, maps, and timelines.

Open source

What to know▼

How it works: You drop documents onto a canvas; AI reads them, discovers connections, and assembles a living workspace of dashboards, maps, and timelines that updates automatically when a source file changes.
What's different: Open source, built in one week with Codex; answers trace back to their source through animated ribbons.

Watched for 3 days · last checked 2d ago

Gloss

Live

A hotkey tool that explains confusing technical instructions AI coding agents give you, like what an env file is and why you're being asked for it.

FreeOpen source

What to know▼

How it works: Highlight text, press a hotkey, get a plain-language explanation of what it means and what changes if you say yes or no.
Pricing: Free, open source.
Best for: Non-technical users following AI agent instructions they don't understand.

Watched for 3 days · last checked 2d ago

Benthic

Live

A practice platform teaching real open-source contribution skills like git mechanics, code review, and licensing through hands-on exercises.

Open source

What to know▼

How it works: 188 practice problems requiring real commands and judgment calls, not multiple choice.
Best for: Developers who want to learn to contribute to open source projects.

Watched for 3 days · last checked 2d ago

BiliTV

Live

An open-source Bilibili client for LG TVs that runs entirely on-device with no external server, supporting 4K and bullet-comment overlays.

FreeWorks offlineOpen source

What to know▼

How it works: on-device Node.js service proxies the API/CDN directly on the TV
What's different: open source, MIT licensed, no PC or server needed
Pricing: free
Best for: LG webOS TV owners wanting Bilibili with danmaku and 4K support

Watched for 3 days · last checked 2d ago

Imposia

Live

An open-source toolkit that keeps HTML documents visually identical across browser preview, print, and PDF/EPUB export instead of reflowing per surface.

Open sourceCan export my data

What to know▼

How it works: maintains one canonical paginated document across HTML/CSS preview, print, and EPUB export
What's different: open source, works with React or framework-neutral core, no server renderer needed
Best for: developers building documents that must print exactly as previewed

Watched for 3 days · last checked 2d ago

VeloIQ

Live

An open-source Python framework that auto-generates a REST API, admin back-office, and React CRUD UI from your data models, for developers building internal tools locally.

Domain registered 2 months ago

Works offlineOpen source

What to know▼

How it works: define data models once in Python; generates API, admin panel, and UI automatically
What's different: open source, local-first, data stays on your infrastructure
Best for: developers building CRUD apps without hand-building each layer

Watched for 3 days · last checked 2d ago

PrePaste

Live

An offline clipboard tool that automatically redacts PII and API keys before you paste into ChatGPT, coding assistants, or anywhere else.

Works offlineOpen source

What to know▼

How it works: detects and redacts secrets/PII from clipboard content before paste
What's different: fully local processing, open source
Best for: developers who paste code or data into LLMs and AI tools

Watched for 3 days · last checked 2d ago

OpenGPT

Live

A free, open-source AI chat assistant that runs in the browser using your own API key, with no login required.

Domain registered 20 days ago

FreeNo sign-upData stays with youOpen source

What to know▼

How it works: Lets you chat with leading AI models using your own API key, running fully in the browser with no login required.
Pricing: Free.

Watched for 3 days · last checked 2d ago

TrustGrowth

Live

Audits a website's SEO from real Search Console data and publishes the results as a public, verifiable proof page instead of a private report.

Domain registered 4 months ago

Open source

What to know▼

How it works: scores technical SEO, performance, E-E-A-T, keywords and strategy into one score, published publicly
What's different: open-source audit playbook you can inspect or run yourself
Watch out: weak signals are published too, not hidden

Watched for 3 days · last checked 2d ago

Codex Quota Panel

Live

A free open-source Windows dashboard that shows your Codex usage quota, reset timers, and token counts at a glance.

FreeOpen sourceNo subscription

What to know▼

How it works: Displays weekly quota, reset time, reset-credit cards, and lifetime token usage for Codex
Pricing: Free and open-source

Watched for 3 days · last checked 2d ago

CivicAI

Live

An open-source browser extension that turns selected webpage text into a structured civic report entirely on-device, with no cloud calls.

Domain registered 3 months ago

Works offlineOpen source

What to know▼

How it works: An open-source Chrome/Edge extension that turns selected webpage text into a structured civic report, classifying the issue, estimating urgency, and drafting a report.
What's different: All AI inference runs locally on-device, with no backend, API key, account, or telemetry.

Watched for 3 days · last checked 2d ago

AURA HomeoAI

Live

An offline clinical assistant for homeopaths that maps patient symptoms to remedies using local, private AI models.

Works offlineOpen source

What to know▼

How it works: Uses local LLMs to repertorize cases and extract clinical rubrics from voice dictation and images
Pricing: Open source
Watch out: 100% offline, no cloud data sharing

Watched for 5 days · last checked today

Google Maps Agent Skills

Live

Set of open-source skills that let Claude Code or other AI agents scrape Google Maps business listings, extract emails and draft cold outreach.

FreeOpen source

What to know▼

How it works: 8 installable skills covering scraping, email extraction, competitor and review analysis
Pricing: 3 skills free/local; scraping skills use a paid API with free starting credits
Best for: Developers building automated local-business lead-generation workflows

Watched for 5 days · last checked today

Voice Studio

Live

A self-hosted studio bundling several open-source TTS/voice engines and Whisper transcription as a local, offline alternative to ElevenLabs.

Works offlineOpen sourceSelf-hosted

What to know▼

How it works: A fully-offline local studio bundling multiple open-source TTS engines (VibeVoice, Kokoro, Chatterbox, OmniVoice, VoxCPM, Qwen3-TTS) plus Whisper voice-to-text.
What's different: Self-hosted, open-source alternative to ElevenLabs.

Watched for 7 days · last checked 1d ago

lovdaCN

Live

An open-source library of React Native UI components you can copy, customize, and build on, styled after shadcn.

Open source

What to know▼

How it works: Beautifully designed React Native components you copy and customize, powered by NativeWind and Uniwind.
Pricing: Open source, open code.

Watched for 6 days · last checked today

API Portfolio — 5 Free APIs

Live

Bundles five small free-tier developer APIs (WHOIS, company lookup, email validation, geolocation, sanctions screening) as a cheaper alternative to separate paid subscriptions.

FreeOpen source

What to know▼

How it works: Bundles five production APIs: Domain WHOIS via RDAP, Company Info from Wikipedia/Wikidata, Email Validator with MX+SMTP, IP Geolocation with dual-source fallback, and a Sanctions Screener with 20K+ OFAC/UN entities.
Pricing: Free tier: 100 requests/month, no credit card.
Watch out: Built with Cursor AI; open source on GitHub.

Watched for 7 days · last checked 1d ago

DSA View View

Live

A TypeScript library that renders algorithm functions as animated visual diagrams so developers can watch data structures change step by step while debugging.

Open source

What to know▼

How it works: Write TypeScript algorithm functions, run them with structured inputs, and watch arrays, matrices, trees, and pointers animate as the function executes.
Best for: developers learning or debugging data structures and algorithms.

Watched for 11 days · last checked 5d ago

Testnizer — The offline API client

Live

Offline desktop API testing client (REST, GraphQL, gRPC) that keeps all your requests and tokens on your machine instead of a vendor cloud.

FreeWorks offlineData stays with youOpen source

What to know▼

How it works: runs 100% offline, stores collections in local SQLite and tokens in the OS keychain
Pricing: free, open source (MIT)
Best for: developers who don't want API collections synced to a third-party cloud

Watched for 5 days · last checked today

OpenScreenShot

Live

Free Chrome extension for taking full-page or region screenshots with an annotation editor, processed entirely on your device.

FreeData stays with youOpen sourceCan export my data

What to know▼

How it works: capture full-page, region, or visible-area screenshots, then annotate with undo/redo and export to PDF
Pricing: free, open source
Watch out: Chrome extension only

Watched for 5 days · last checked today

Auditar

Live

An open-source Python library that logs AI model inputs/outputs locally for audit trails without touching model weights.

Domain registered 3 months ago

Works offlineOpen source

What to know▼

How it works: Instruments scikit-learn/XGBoost/LightGBM inference, storing only inputs/outputs in a local SQLite queue
Pricing: Open source, pip install
Best for: Regulated finance teams needing audit trails without sharing model weights

Watched for 5 days · last checked today

DUI

Live

An open-source library of React UI components and blocks for developers building AI product interfaces.

Open source

What to know▼

How it works: Prebuilt React/Tailwind/shadcn components for landing pages, dashboards, and AI app UIs
Pricing: Open source

Watched for 5 days · last checked today

Floe spend controls for voice AI agents

Live

Gives voice-AI developers one account to meter spend across their whole vendor stack (LLM, speech-to-text, text-to-speech, telephony) with spend caps and kill-switches.

Open source

What to know▼

How it works: Server-side spend caps and per-agent kill-switches across multiple vendor APIs under one key
What's different: Open-source floe-guard component
Best for: Developers building voice AI products across several paid vendor APIs

Watched for 5 days · last checked today

Depheal

Live

An offline scanner that checks Python projects for known CVE vulnerabilities using local AST analysis, instead of a cloud-based dependency scanner.

Works offlineOpen source

What to know▼

How it works: Static AST analysis run entirely locally, with no internet connection or external dependencies required.
Pricing: Open source, published on PyPI.
Best for: Developers who want fast vulnerability scanning without sending code to a cloud service.

Watched for 6 days · last checked today

Client Koi

Live

A free, open-source Chrome extension that scrapes Google Maps to extract verified B2B leads with emails and social profiles by deep-crawling business websites, including automated CAPTCHA bypass.

FreeOpen source

What to know▼

How it works: Deep-crawls B2B business websites found via Google Maps to find verified emails and social profiles, with automated 2Captcha bypass.
Pricing: Free.

Watched for 6 days · last checked today

Kantanban

Live

Managed hosting for the open-source Kanboard project-management tool, so small businesses get task tracking without installing or maintaining it — a cheaper alternative to Asana.

Domain registered 14 days ago

Open source

What to know▼

How it works: Managed hosting for the open-source Kanboard project-management tool, so you get task and team tracking without installing or maintaining the software yourself.
What's different: Built on open-source Kanboard rather than a proprietary tool, positioned as a cheaper alternative to Asana.
Best for: Small businesses that find tools like Asana too expensive.

Watched for 9 days · last checked 3d ago

Warmbly

Live

Open-source cold-outreach platform with AI automation, email warmup, and real-time team collaboration for sales prospecting.

Domain registered 13 months ago

Open source

What to know▼

How it works: An open-source platform for cold outreach with AI automations, real-time collaboration, agents, and email warmup.
Best for: Sales teams doing cold email prospecting who want an open-source alternative.

Watched for 10 days · last checked 4d ago

CodeNearby 2.0

Live

An open-source social network for finding coding partners by skill, interest or location using GitHub profiles — a matchmaking app for developers seeking collaborators.

Open source

What to know▼

How it works: An open-source social network where developers find coding partners by skill, interest, or location, chat in real time, share updates, host virtual meetups, and use AI-Connect to discover collaborators through natural conversation.
What's different: Uses GitHub-powered profiles for matchmaking rather than a generic profile form.
Best for: Developers looking to find coding partners or collaborators.

Watched for 11 days · last checked 5d ago

3-Line Calendar

Live

Shows your next three calendar events on Apple Watch, iPhone, iPad, and Mac, with no ads or tracking.

FreeOpen source

What to know▼

Pricing: Free, open source

Watched for 4 days · last checked today

VALORANT Store Checker

Live

Open-source tracker for daily Valorant store skin offers and discounts pulled from your Riot account.

Open source

What to know▼

Pricing: Open source

Watched for 4 days · last checked today

InboxTap

Live

Local SMTP test server for developers to safely test signup, password reset, and OTP emails without sending anything to real inboxes.

FreeOpen source

What to know▼

How it works: Runs locally, app points to it, each test run gets an isolated inbox so parallel tests don't collide.
What's different: Open-source and free, no external delivery.
Pricing: Free
Best for: Developers testing email flows with Playwright, Vitest, Jest, or Node.

Watched for 4 days · last checked today

SketchLog

Live

An open-source observability platform that stores compact telemetry summaries instead of every raw event, for engineering teams who want p95/p99 and anomaly tracking without ballooning storage costs.

Open source

What to know▼

How it works: An open-source observability platform that uses sketch data structures to answer production questions — p95/p99 latency, unique users, top events, anomaly movement, SLO burn — from compact telemetry summaries instead of storing every raw event. Includes a hosted playground, dashboards, Postgres durability, SDKs, and Docker/Helm/Kubernetes support.
What's different: Keeps only compact statistical summaries rather than raw event storage, cutting storage costs.
Best for: Engineering teams who want latency and anomaly tracking without their storage bill ballooning.

Watched for 8 days · last checked 2d ago

TripoSplat WebGPU on Vercel!

Live

Generates a 3D model from a single image entirely on-device using WebGPU, with no server uploads or accounts needed — an open-source tool for developers experimenting with local image-to-3D generation.

Works offlineData stays with youOpen source

What to know▼

How it works: Generates a 3D model from a single image entirely on-device using WebGPU compute in the browser, with no server uploads or accounts.
What's different: Open source and runs locally via WebGPU rather than requiring cloud GPU processing, also deployable on Vercel for instant testing.
Best for: Developers experimenting with local, private image-to-3D generation.

Watched for 9 days · last checked 3d ago

Bey Wallet

Live

An open-source mobile Bitcoin wallet for everyday private payments, supporting Cashu ecash, Lightning payments, and sending to Nostr users.

Domain registered 5 months ago

Open source

What to know▼

How it works: Send and receive Cashu ecash, pay via Lightning, send to Nostr users, and use QR or NFC from one mobile wallet.
Best for: People who want to spend Bitcoin as everyday money rather than just hold it.

Watched for 6 days · last checked today

Bothread

Live

A free, open-source local app that lets multiple AI coding agents (Claude Code, Cursor, Codex, etc.) collaborate on one codebase over MCP while the user watches and approves each step.

FreeWorks offlineOpen source

What to know▼

How it works: Runs locally with no API keys or cloud account required; coordinates coding agents over MCP with step-by-step user approval.
Pricing: Free and open source.
Best for: Developers using multiple AI coding agents on the same codebase who want oversight of each step.

Watched for 6 days · last checked today

Buselligence: AI, Open & Yours

Live

An open-source, self-hostable platform for building AI agents and connecting tools via MCP, using your own LLM provider keys — for developers who want to avoid vendor lock-in.

Open sourceSelf-hosted

What to know▼

How it works: An MIT-licensed, self-hostable platform for building AI agents, connecting tools via Model Context Protocol (MCP), generating code, and working with your choice of LLM provider using your own API keys.
What's different: Self-hosted and open-source, avoiding the vendor lock-in of hosted AI platforms.
Best for: Developers and businesses who want to self-host and customize their own AI agent platform.

Watched for 9 days · last checked 3d ago

Sydes test

Live

A CLI tool that generates backend API integration tests by first understanding routes, handlers, and models, for developers using AI coding agents instead of writing tests manually.

Open source

What to know▼

How it works: CLI-only, open-source, requires an LLM key to generate integration tests.
Best for: Developers using AI coding agents who need structural understanding before test generation.

Watched for 1 day · last checked today

Token Guard

Live

Tracks and converts LLM API spend across OpenAI, Anthropic and Gemini locally, instead of trusting a cloud dashboard with your usage data.

FreeWorks offlineOpen source

What to know▼

Pricing: Free and open source.
Best for: Developers juggling multiple LLM provider SDKs and costs.

Watched for 1 day · last checked today

FlowForge

Live

A visual drag-and-drop editor for Mermaid diagrams inside VS Code that keeps diagrams as plain Git-friendly Mermaid source, instead of hand-writing diagram syntax.

Open source

What to know▼

How it works: Open a .mmd file, build on an infinite canvas; source stays in sync with the visual edits.

Watched for 1 day · last checked today

smtp-probe

Live

An open-source CLI that checks SPF/DKIM/DMARC/MX records, verifies addresses via SMTP, and flags disposable/role-based emails, for developers validating deliverability before sending.

Open source

What to know▼

How it works: DNS health scoring, SMTP RCPT TO verification, domain typo correction, 29 RBL blacklist scans, ~74k disposable domain detection; includes REST API.
Pricing: Free demo available.

Watched for 1 day · last checked today

Nicegram

Live

An enhanced Telegram client with a built-in crypto wallet, AI assistant, and privacy features, aimed at individuals and businesses who want more security and Web3 tools than stock Telegram.

Data stays with youOpen source

What to know▼

How it works: An enhanced Telegram client with a non-custodial multichain wallet, a built-in AI assistant, and an Agent Marketplace, layered on top of standard Telegram messaging.
What's different: Open-source and privacy-focused, adding financial and AI tools directly into the messaging client instead of requiring separate apps.
Best for: People who want more privacy, a built-in crypto wallet, and AI tools within the Telegram experience they already use.

Watched for 17 days · last checked 1d ago

Vault CMS

Live

Open-source system that turns Obsidian into a publishing platform for Astro websites, for developers who want a local editing workflow instead of a hosted CMS.

Domain registered 7 months ago

Open source

What to know▼

How it works: Auto-detects your Astro theme and content structure, injects preconfigured plugins and hotkeys into Obsidian, and can instant-publish via the Git plugin.
Best for: Developers running an Astro site who want to write content in Obsidian.

Watched for 6 days · last checked 6d ago

Banalytics

Live

Self-hosted, open-source monitoring for cameras and IoT sensors — footage stays on your own hardware while a hosted portal just handles remote access — a free alternative to Frigate, Blue Iris and Shinobi.

Domain registered 3 years ago

FreeOpen sourceSelf-hosted

What to know▼

How it works: An open-source Java agent turns cameras, sensors and physical systems into one automated setup using ONVIF/RTSP, Modbus and MQTT, with detection via YOLO or Gemini AI; a hosted portal provides remote access over WebRTC.
What's different: Video and sensor data stay on your own hardware — the hosted portal only handles connection and billing, unlike cloud-based VMS platforms.
Pricing: Free Community plan.
Best for: People self-hosting camera and IoT sensor monitoring who want an alternative to Frigate, Blue Iris or Shinobi.

Watched for 9 days · last checked 3d ago

Axiom

Live

A free, open-source Windows tool that runs apps like Discord, ChatGPT and Meta products inside isolated local sandboxes to block client-side scanning and OS-level telemetry. For privacy-conscious users worried about surveillance, not a ChatGPT alternative.

FreeOpen source

What to know▼

How it works: Runs locally on Windows, enforcing hyper-isolated memory partitions to encapsulate apps like Discord, ChatGPT and Meta webgrids, blinding host OS scanning daemons while keeping the apps fully functional.
What's different: Works entirely on-device with no remote servers, positioned as active defense against Client-Side Scanning and EU Chat Control rather than a cloud service.
Pricing: Free and open-source.
Best for: Privacy-conscious Windows users worried about client-side scanning or telemetry from apps like Discord, ChatGPT and Meta products.

Watched for 9 days · last checked 3d ago

CleanDevMac

Live

Open-source CLI for developers to find and safely delete dev caches and build junk eating up Mac disk space.

Open sourceNo tracking

What to know▼

How it works: An open-source macOS CLI that scans for developer caches, build artifacts, Electron junk, and orphaned app data, showing an itemized list before deleting anything.
What's different: Never deletes without showing the itemized list first; pure bash, zero telemetry.
Pricing: Open source, MIT licensed.
Best for: macOS developers whose disk is being eaten by accumulated dev caches and build junk.

Watched for 8 days · last checked 2d ago

PgDog

Live

An open source Postgres connection pooler, load balancer and sharding proxy built by database engineers, for scaling Postgres without app changes.

Domain registered 18 months ago

Open source

What to know▼

How it works: An open source connection pooler, load balancer and sharding proxy that sits in front of PostgreSQL to scale it without requiring changes to the application.
What's different: Postgres-compliant proxy built by database engineers, aimed specifically at sharding and pooling rather than being a general API gateway.
Pricing: Open source.
Best for: Teams scaling a Postgres deployment who want pooling and sharding without rewriting their application.

Watched for 12 days · last checked 1d ago

SolidState HQ

Live

Open-source deterministic runtime for building controllable AI agents, separating probabilistic reasoning from deterministic state-machine execution.

Domain registered 11 days ago

Open source

What to know▼

How it works: An open-source runtime for building AI agents that separates probabilistic reasoning from deterministic execution, giving the runtime control over state transitions, tools, approvals, retries, concurrency and limits.
What's different: The alpha includes FSM workflows, human-in-the-loop policies, parallel tools, checkpointing, StateGraph orchestration, actor-based concurrency, tracing and multi-model support.
Best for: Developers building AI agents who need deterministic, controllable execution rather than pure LLM-driven control flow.
Watch out: This is an alpha release.

Watched for 9 days · last checked 3d ago

Astraio Client

Live

A free, native Rust desktop app for testing HTTP/GraphQL/WebSocket APIs, for developers wanting a fast, low-memory alternative to Postman/Insomnia.

Open source

What to know▼

How it works: An open-source API client built in Rust with a native Iced GUI, supporting HTTP, GraphQL, WebSockets and more for API testing.
What's different: Native Rust performance with lower memory use than Electron-based API clients.
Pricing: Open-source.
Best for: Developers wanting a fast, low-memory alternative to Postman or Insomnia.

Watched for 8 days · last checked 2d ago

Valo Security

Live

An open-source platform unifying AI, SaaS and agent security with policy enforcement and risk detection mapped to OWASP and MITRE frameworks — built for enterprise security teams.

Open source

What to know▼

How it works: Unifies AI, SaaS, and agent security in one open-source platform with deterministic policy enforcement, AI-native risk detection, and framework mapping to OWASP LLM Top 10 and MITRE ATLAS.
What's different: Deterministic policy enforcement and governance rather than just alerting.
Best for: Enterprise security teams that need visibility, governance, and enforcement across AI and agent usage.

Watched for 10 days · last checked 4d ago

QuickImageViewer (qIV)

Live

A tiny, fast native image viewer for Windows built as a lightweight, open-source alternative to bloated legacy viewers — portable, no install needed.

Nothing to installOpen source

What to know▼

How it works: A portable, sub-10 MB image viewer for Windows built with native C++ and Win32 APIs, supporting modern formats like WebP and JPEG XL, with self-healing registry integration.
What's different: Positioned as a lightweight, hardware-aware alternative to bloated legacy image viewers, with no install required.
Best for: Windows users who want a fast, minimal image viewer instead of a heavier default app.

Watched for 11 days · last checked 5d ago

Recipe Jar

Live

Paste a recipe link and get a clean, ad-free ingredient-and-steps card saved locally in your browser, not on a server; open source, works offline, no account needed.

No sign-upWorks offlineOpen sourceNo ads

What to know▼

How it works: Paste a recipe link and it strips out everything but the ingredients and steps, saved locally in your browser rather than on a server, with a cook mode that includes step timers.
What's different: Recipes are stored in your browser, not a server — open source (MIT) and works offline.
Pricing: Free, no account, no ads.
Best for: Anyone who wants a clean, ad-free recipe card without scrolling through a blog post to reach the ingredient list.
Watch out: Since recipes are saved in your browser rather than the cloud, they won't sync across devices — the page doesn't mention a sync or export option.

Watched for 17 days · last checked 2d ago

Spantail

Live

A self-hosted, open-source work log that tracks both human and AI agent activity in one timeline and turns it into reports, for teams that want to run it on their own infrastructure.

Domain registered 1 month ago

Open sourceSelf-hosted

What to know▼

How it works: An open-source, self-hosted work log that records both human and AI agent activity in one unified timeline and turns it into reports, with low overhead.
What's different: MIT-licensed and self-hosted on Cloudflare, so teams control their own infrastructure rather than using a hosted SaaS log.
Best for: Teams that want to track combined human and AI work on their own infrastructure.

Watched for 11 days · last checked 5d ago

Claude Overlay

Live

A floating always-on-top Windows window that runs Claude Code with screen awareness, so developers can ask about what's on screen and have it edit files or run commands.

Open source

What to know▼

How it works: A frameless, always-on-top Windows chat window for Claude Code, summoned by hotkey, that captures and reads your monitors before answering, then can edit files and run commands using your own Claude Code subscription.
What's different: Runs the full Claude Code agent on your existing subscription rather than requiring a separate API key, and has screen awareness rather than just chat.
Pricing: Open source (MIT).
Best for: Developers on Windows who want a floating Claude Code assistant that can see their screen while they work.

Watched for 12 days · last checked 6d ago

GemType

Live

Checks grammar and rewrites text right inside Gmail, LinkedIn, X and Reddit, using a Gemini API key you provide yourself, free and open source, no subscription.

FreeNo sign-upOpen sourceNo subscription

What to know▼

How it works: Checks grammar and rewrites text inline on any website — Gmail, LinkedIn, X, Reddit — using your own free Google Gemini API key.
What's different: Free and open source, and runs on a Gemini key you supply yourself instead of a paid subscription.
Pricing: Free, no account or subscription.
Best for: People who want a Grammarly-style writing checker without paying for a subscription or handing over data to a third-party service.

Watched for 12 days · last checked 6d ago

PH Daily Top 50

Live

A free, open-source daily digest of the top 50 Product Hunt launches with short AI summaries, so you can skim the day in two minutes instead of opening 50 tabs.

Domain registered 11 days ago

FreeNo sign-upOpen source

What to know▼

How it works: Automatically compiles the 50 most-upvoted Product Hunt launches each day into a digest, with a short AI-written summary of what each does, who it's for, and what stands out; it updates once daily rankings settle and keeps the last 7 days.
What's different: Open source (MIT) — you can run your own copy with your own API keys — and needs no account.
Pricing: Free.
Best for: People who want to skim the day's top launches in two minutes instead of opening 50 Product Hunt tabs.

Watched for 9 days · last checked 3d ago

Posthawk

Live

An edge-native transactional email service for Next.js/Vercel/Cloudflare apps, with a self-hosted open-source option, for developers who don't want to run their own email infrastructure.

Domain registered 4 months ago

Open sourceSelf-hosted

What to know▼

How it works: An edge-native transactional email service for Next.js, Vercel and Cloudflare Workers, with an open-source self-host option.
What's different: Runs at the edge alongside the deploy rather than as a separate hosted email service, and can be self-hosted.
Best for: Developers on Next.js/Vercel/Cloudflare who want transactional email without running their own infrastructure.

Watched for 8 days · last checked 2d ago

Patter SDK

Live

An open-source SDK that gives your AI agent a phone number in a few lines of Python or TypeScript, pitched as the self-hosted alternative to hosted voice-AI platforms like Vapi or Retell. Built for developers who want to own the stack.

Open source

What to know▼

How it works: An open-source SDK that gives an AI agent a phone number in a few lines of Python or TypeScript, using Twilio, Telnyx or Plivo as the underlying carrier.
What's different: Pitched as the self-hosted alternative to hosted voice-AI platforms like Vapi or Retell, for builders who want to own the stack.
Pricing: Open source, MIT licensed.
Best for: Developers building voice AI agents who want to self-host rather than rely on a hosted platform.

Watched for 12 days · last checked 6d ago

Elmo

Live

Self-hosted, open-source tracker for how ChatGPT, Claude, Perplexity and Google AI Overviews mention your brand versus competitors — a free alternative to Profound, Peec or Otterly.

FreeOpen sourceCan export my dataSelf-hosted

What to know▼

How it works: Tracks how AI answer engines like ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews mention, cite, and describe a brand, so teams can benchmark against competitors.
What's different: Open-source and self-hosted, so you run it on your own infrastructure, own your data, and can audit exactly how every metric is calculated — positioned as a free alternative to Profound, Peec, and Otterly.
Pricing: Free.
Best for: Developers and marketers who want to track AI visibility (AEO/GEO/LLMO) without handing data to a hosted vendor.

Watched for 17 days · last checked 1d ago

ArtistPass

Live

An open-source, self-deployed portfolio template for actors and artists, with a browser-based admin for credits, gallery, showreel, and contact info, that keeps content in your own Vercel project instead of a locked-in SaaS.

FreeOpen source

What to know▼

How it works: Deploys as your own project on Vercel with a browser-based Admin panel for managing credits, gallery, showreel, and contact details; ships with a fictional demo profile to start from.
Pricing: Free and open source.
Best for: Actors and artists who want a portfolio they own and control instead of a subscription SaaS.
Watch out: Requires deploying your own instance on Vercel rather than signing up for a hosted service.

Watched for 10 days · last checked 4d ago

Folium

Live

A free, open-source resume builder with 15 templates, a live preview, and an ATS-ready PDF export, plus AI job-tailoring that scores your resume against a pasted job posting and matches keywords.

Domain registered 18 days ago

FreeNo sign-upOpen source

What to know▼

How it works: Build a resume from 15 templates with a live preview and ATS-ready PDF export; paste a job posting to get a match score, missing keywords, a tailored copy, and a cover letter.
What's different: Open source under AGPL, with no resume database storing your data.
Pricing: Free, no account, no paywall.
Best for: Job seekers who want a private resume builder without an account or paywall.

Watched for 10 days · last checked 4d ago

TenTags – Declarative (IR) for Documents

Live

An open-source declarative language for generating documents from one definition, compiling to HTML, PDF and Excel. A developer infrastructure tool for structured documents, not a spreadsheet replacement.

Domain registered 16 days ago

Open source

What to know▼

How it works: An open-source declarative language and intermediate representation for documents that compiles one document definition into HTML, PDF and Excel output, keeping business logic separate from presentation.
What's different: Replaces embedding programming logic into templates with a compact semantic syntax that Python applications and AI agents can generate directly.
Best for: Developers building document-generation pipelines who need one definition to produce multiple output formats.

Watched for 13 days · last checked 7d ago

Graphite

Live

A local-first, self-hostable, open-source notes app with semantic search, autonomous research agents, and voice notes, where data never leaves the user's machine unless they choose to share it.

Works offlineData stays with youOpen sourceSelf-hosted

What to know▼

How it works: Stores notes locally and adds semantic search, ReAct agents, cited deep research, voice notes, and financial analysis on top, all self-hosted and MIT licensed.
Best for: Technical users who want an AI-augmented notes app without sending their data to the cloud.
Watch out: Requires self-hosting, so it needs technical setup compared to a hosted notes app.

Watched for 6 days · last checked 5d ago

Pulse

Live

An open-source AI revenue-ops copilot for sales and RevOps teams that turns pasted meeting notes into HubSpot updates, drafts follow-up emails, syncs Google Calendar context, and posts summaries to Slack, without writing to CRM or sending anything without approval.

No sign-upOpen source

What to know▼

How it works: Maps meeting notes to your HubSpot schema (deal stage, amount, custom properties, next steps) and drafts Gmail follow-ups.
Pricing: Browser demo needs no signup; source is open and self-hostable.
Best for: Sales and RevOps teams on HubSpot who want notes turned into CRM updates automatically.
Watch out: Nothing writes to CRM or sends without your approval, per the product's own description.

Watched for 6 days · last checked 4d ago

StartupDeath

Live

A free, open-source tool where six AI agents role-play as an investor, customer, competitor, regulator, employee, and analyst to attack a startup idea and produce a survival score, citing real startup failures.

FreeOpen source

What to know▼

How it works: six AI agents attack the idea simultaneously and reference failures like Webvan and Theranos; includes a public 'startup graveyard'.

Watched for 6 days · last checked 5d ago

sendthen

Live

Self-hosted, open-source email infrastructure for sending transactional email and campaigns from your own server with a developer API, instead of relying on a third-party email service.

Open sourceSelf-hosted

What to know▼

How it works: Sends transactional email, campaigns, and inbound mail from a self-hosted control plane, storing data in a single SQLite file and supporting SES, SMTP, direct MX, or a local sandbox.
Best for: Developers who want to run and own their email infrastructure rather than outsourcing it.

Watched for 6 days · last checked 5d ago

Hasir

Live

A free, open-source, self-hosted Protobuf schema registry for engineers who want to manage and version their Protocol Buffers without vendor lock-in, as a lightweight alternative to Buf.

FreeOpen sourceSelf-hosted

What to know▼

How it works: A self-hosted registry for managing, versioning, and distributing Protocol Buffers.
What's different: Lightweight alternative to Buf without vendor lock-in.
Pricing: Free and open-source.
Best for: Engineers.

Watched for 6 days · last checked 5d ago

Open Screenshot Generator

Live

An open-source, template-based design tool for building App Store and Play Store screenshots, feature graphics, and preview videos entirely in your browser or desktop app, with no account or upload required.

Domain registered 13 days ago

FreeNo sign-upData stays with youOpen source

What to know▼

How it works: pick a template, drop in your app screens, and export every required store size, including MP4 previews
What's different: an optional AI agent can build the whole listing from raw screenshots
Best for: app developers and designers preparing store listings

Watched for 6 days · last checked 5d ago

memgrep

Live

An open-source local control plane and MCP server for Cursor that recalls past fixes and playbooks, runs coding loops until tests pass, and can be driven from Telegram or integrated with tools like Jira and PostHog.

Open source

What to know▼

How it works: Ingests chats from Cursor, Claude Code, and Kiro, runs hybrid recall over past fixes, and runs coding loops until tests pass, exposed as a single MCP server with optional integrations.

Watched for 6 days · last checked 4d ago

NATS Studio : The desktop GUI for NATS

Live

A native, open-source desktop GUI for managing NATS messaging — connecting, publishing and subscribing, and managing JetStream, Key-Value, and Object Store — for developers on Windows, macOS, or Linux.

Open source

What to know▼

How it works: Cross-platform native desktop app for connecting to NATS servers and managing JetStream, Key-Value, and Object Store.

Watched for 6 days · last checked 4d ago

Humla

Live

A Mac app that records and transcribes meetings entirely on-device, no bot joins the call. Free and open source, with optional cloud or self-hosted sync for teams.

FreeWorks offlineOpen sourceNo tracking

What to know▼

How it works: Records mic and call audio directly through macOS with no bot joining the meeting, then transcribes, labels speakers, and writes a summary that fuses your notes with the transcript. Runs fully on-device using Whisper on Apple Silicon, or with your own AI key.
What's different: No bot joins the call, and it can run entirely on-device with local SQLite storage and no telemetry.
Pricing: Free and MIT-licensed, with optional paid team sync via Humla Cloud or self-hosting.
Best for: Mac users who want private, on-device meeting transcription without a bot joining their calls.

Watched for 12 days · last checked 6d ago

FableCut

Live

An open-source, browser-based video editor built so AI agents like Claude can edit a JSON timeline over MCP while you direct — a technical tool for developers building agent-driven video workflows.

Nothing to installOpen source

What to know▼

How it works: An open-source, browser-based, Premiere-style video editor where AI agents like Claude edit by patching a JSON timeline over MCP, with the UI live-reloading in about 150ms.
What's different: Runs in the browser with no install or build step, and is built specifically so an AI agent can drive edits while the human directs.
Best for: Developers building agent-driven video editing workflows.

Watched for 13 days · last checked 7d ago

figma-ios-codegen

Live

Turns a Figma frame link into baseline Swift UIKit code for AI coding agents like Cursor, Claude or Codex to build from. An open-source developer tool for iOS engineers, not a mobile app itself.

Open source

What to know▼

How it works: Give an AI coding agent a Figma frame link and it builds a clean cached design package, then generates baseline Swift UIKit code for Cursor, Claude, or Codex, with support for custom color/font/icon maps, base classes, full-screen coverage gates, and buffering against Figma 429 rate limits.
What's different: Works from a Figma link instead of screenshots or a raw file dump; open source, so you own the wiring for production APIs.
Best for: iOS engineers using AI coding agents to turn Figma designs into UIKit code.

Watched for 12 days · last checked 6d ago

Clearcote

Live

An open-source, de-Googled Chromium build with fingerprint controls and SDKs for browser automation.

Domain registered 1 month ago

Open source

What to know▼

How it works: Provides engine-level fingerprint controls, reproducible builds, and drop-in SDKs for Playwright and Puppeteer.
Best for: Developers doing browser automation who need fingerprint control.

Watched for 11 days · last checked 5d ago

ServiceBeard

Live

Syncs a support mailbox into GitHub, GitLab or Linear so you can run a service desk from your existing issue tracker instead of paying for separate helpdesk software.

Open source

What to know▼

How it works: Syncs a support mailbox to your issue tracker over standard IMAP/SMTP, turning incoming emails into tracked issues so you can run a service desk from GitHub, GitLab, or Linear.
What's different: Open-source and works with the automation pipelines you've already built in your issue tracker, instead of adding a separate per-seat helpdesk tool.
Best for: Teams already living in GitHub, GitLab, or Linear who want to handle customer email without buying dedicated helpdesk software.

Watched for 14 days · last checked 2d ago

Pseudo

Live

A Chrome extension for LeetCode practice that turns your described approach into code with your own LLM key, without the AI quietly fixing your mistakes. For developers training for interviews.

Open source

What to know▼

How it works: A Chrome extension for LeetCode practice: describe your algorithm approach in natural language and it generates code with your chosen LLM exactly as described, right or wrong, plus an experimental 'Resource Units' metric for AI usage.
What's different: Does not silently improve or fix your described approach the way other AI coding tools do — the generated code reflects your reasoning as-is, mistakes included.
Best for: Developers training for coding interviews who want to practice their own problem-solving rather than let AI solve it for them.
Watch out: Requires bringing your own LLM API key (BYOK); there is no backend.

Watched for 13 days · last checked 7d ago

Vinci - A Personal CRM using Nextcloud

Live

Turns your existing Android contacts into a lightweight personal CRM with interaction logs, follow-up reminders and birthday alerts, no new account or cloud lock-in, and no telemetry.

FreeWorks offlineOpen sourceNo ads

What to know▼

How it works: Reads directly from your existing Android contacts (via DAVx5, Nextcloud, or any contacts sync) and layers relationship tracking on top: interaction logging, follow-up reminders, birthday alerts, social profile links, and per-contact notes. You can also log interactions with numbers not saved in contacts.
What's different: No new silo or cloud account required — it builds a CRM on top of contacts you already have instead of a separate database.
Pricing: Free.
Best for: Android users who want lightweight relationship tracking without creating a new account or syncing to a third-party cloud.

Watched for 13 days · last checked 7d ago

Habeas

Live

A browser extension that exports your own data — receipts, invoices, bank statements — straight from your logged-in sessions on sites with no official export, unlike Plaid or Tink.

Open sourceCan export my data

What to know▼

How it works: An open-source browser extension that exports your own data — receipts, invoices, bank and card transactions — directly from your logged-in session on sites that have no API or export option, without storing any credentials.
What's different: Runs inside your real session instead of connecting via credentials or fighting bot detection like Plaid or Tink; data only leaves the browser to a destination you choose (folder, Drive, Dropbox, WebDAV, S3), and sources are declarative, auditable entries in an open registry rather than code.
Best for: Developers and users who need to pull their own financial data out of services with no official export.

Watched for 11 days · last checked 5d ago

AllergyTJ

Live

A free, open-source pollen and air-quality tracker for 30 Tajikistan cities, combining a seasonal allergen calendar with live weather and satellite air data, delivered in Tajik, Russian and English.

FreeNo sign-upOpen sourceNo tracking

What to know▼

How it works: Tracks pollen risk and air quality across 30 Tajikistan cities using an inference-based model: a seasonal calendar for 9 allergen species, adjusted with live Open-Meteo weather and Copernicus CAMS satellite air-quality data, with a 5-day forecast and personal allergen profiles.
What's different: Free, open source, no sign-up or tracking, and available in Tajik, Russian and English with Telegram updates.
Pricing: Free.
Best for: People in Tajikistan managing seasonal allergies who want localized forecasts.
Watch out: Pollen risk is modeled/inferred from weather and satellite data, not measured directly.

Watched for 11 days · last checked 5d ago

Kan.bn

Live

An open-source Kanban board for organizing tasks and workflow, with Trello board import — a general project-management tool for teams, not developer-specific.

Open source

What to know▼

How it works: An open-source Kanban board app for drag-and-drop task management, with controllable board visibility and the ability to import existing Trello boards.
What's different: Open-source, so it can be customized and extended by the community rather than being a closed SaaS board.
Best for: Agile teams, project managers, and remote teams organizing work and tracking progress.

Watched for 14 days · last checked 2d ago

SDKCraft

Live

A free, open-source CLI and web tool that turns an OpenAPI spec into a ready-to-use client SDK in TypeScript, Python, Go, Dart or Java — a developer tool, not an API service.

FreeNo sign-upOpen source

What to know▼

How it works: Turns an OpenAPI spec into a production-ready SDK in TypeScript, Python, Go, Dart or Java, with a code preview, ZIP download, a CLI (npx sdkcraft), API change detection, and an AI documentation generator.
What's different: Free, open source and requires no signup.
Pricing: Free and open source.
Best for: Developers who need a client SDK generated from an existing OpenAPI spec instead of writing one by hand.

Watched for 12 days · last checked 6d ago

NoSignups.Net

Live

A free, open-source collection of browser tools you can use instantly with no signup, install or tracking; the site doesn't say what the tools actually are.

No sign-upOpen sourceNo tracking

What to know▼

How it works: A collection of browser-based tools you can use instantly via a link, with no signup, install or tracking.
What's different: No account, no install and no tracking required to use any tool.
Watch out: The description doesn't say what the actual tools do.

Watched for 12 days · last checked 6d ago

Plasma

Live

A free, open-source browser tool for designing WebGL gradient backgrounds, exportable as a raw shader, CDN script or no-code iframe embed — built for developers adding visuals to sites.

FreeOpen sourceCan export my data

What to know▼

How it works: Lets you design WebGL gradient backgrounds in the browser, customizing colors, flow speed, noise and grain live, then export as a raw WebGL shader, a lightweight CDN script, or a zero-code iframe embed link.
Pricing: Free and open-source.
Best for: Developers who want to add a customizable animated gradient background to a site without writing shader code from scratch.

Watched for 9 days · last checked 3d ago

Strike48 Pick

Live

A free, open-source, MIT-licensed penetration-testing agent bundling 90+ recon tools (nmap, nuclei, sqlmap and more) into a three-agent pipeline — for security engineers running assessments from the command line.

Domain registered 10 months ago

FreeOpen source

What to know▼

How it works: A reconnaissance agent that runs from inside the environment being tested (desktop, mobile, terminal or headless), bundling 90+ pentest tools like nmap, nuclei, sqlmap and aircrack-ng, plus native port scanning, device enumeration, WiFi discovery and packet capture. A three-agent pipeline (red team, validator, report) turns recon into verified findings.
What's different: Single Rust/Dioxus codebase across desktop, mobile, terminal and headless environments, and is MIT licensed so it can be inspected and extended.
Pricing: Free and open-source, MIT licensed.
Best for: Security engineers running penetration tests who want a bundled, extensible recon and reporting agent.

Watched for 9 days · last checked 3d ago

Shumai

Live

An open-source Frame.io alternative for uploading creative files, giving feedback, and collaborating on creative work, including with AI agents, built for creative teams rather than developers.

Domain registered 3 months ago

Open source

What to know▼

How it works: An open-source platform for uploading creative files, managing projects, collecting precise feedback, and collaborating with AI agents in one workspace.
What's different: Open source, positioned as an alternative to Frame.io.
Best for: Creative teams reviewing and collaborating on creative files, rather than developers.

Watched for 9 days · last checked 3d ago

LangWatch

Live

An open-core platform for testing, simulating and monitoring multi-step AI agents in production, including an open-source framework for running adversarial conversation simulations before launch.

Open source

What to know▼

How it works: An open-core platform to test, simulate and monitor AI agents end-to-end, including multi-turn, multi-step, multi-agent systems, with an open-source framework (Scenario) for simulating full multi-turn agent conversations — including adversarial and edge-case paths — before production.
What's different: Tests agent behavior across full interactions the way software teams test software, rather than just grading single LLM outputs like most competitors.
Best for: Teams building complex or multi-agent AI systems who need to catch broken behavior before users do.

Watched for 17 days · last checked 1d ago

AI2Web

Live

Lets a website expose its capabilities to AI assistants like Claude and ChatGPT via MCP, ACP, REST and GraphQL. Open-source, for site owners, not end users.

Open source

What to know▼

How it works: Lets a website describe its capabilities once, then exposes them across MCP, ACP, REST, and GraphQL from one place, with support for Claude and ChatGPT connectors today.
What's different: MIT-licensed open interoperability layer, so a single description drives multiple AI integration protocols.
Pricing: Open source.
Best for: Site owners and developers who want their website to work with multiple AI assistants without building separate integrations for each.

Watched for 15 days · last checked 7d ago

BackupDrill

Live

Backs up your Supabase Postgres database and storage files to your own S3-compatible bucket, then proves the backups actually work with weekly automated restore drills. Built for developers running Supabase in production.

Domain registered 23 days ago

Open source

What to know▼

How it works: Backs up a Supabase project's Postgres database and Storage files to your own S3/R2/B2 bucket, then runs weekly automated restore drills in a throwaway sandbox, verifying tables, rows, and checksums.
What's different: Proves backups are actually restorable through scheduled restore drills, rather than just taking backups on faith.
Best for: Developers running Supabase in production who need verified, restorable backups.

Watched for 12 days · last checked 6d ago

CodexBar Lite

Live

Lets developers monitor their OpenAI Codex usage from the macOS menu bar instead of checking a web dashboard, using only their existing CLI session.

Data stays with youOpen source

First seen today · last checked today

Sandbox SDK

Live

An open-source TypeScript SDK for spinning up sandboxes across providers like Vercel, E2B, Daytona and Upstash with one syntax, for developers building agent tooling.

Domain registered 11 days ago

Open source

What to know▼

How it works: An open-source TypeScript SDK for spinning up sandboxes with one syntax across multiple providers — Vercel, E2B, Daytona, Upstash and others — with integrations for tools like AI SDK, Eve and Mastra, plus included agent skills.
What's different: One consistent syntax across different sandbox providers instead of learning each provider's own API.
Pricing: Open source, MIT licensed.
Best for: Developers building agent tooling who need sandbox environments across multiple providers.

Watched for 10 days · last checked 4d ago

Libretto

Live

Open-source CLI that lets coding agents inspect live web pages, reverse-engineer network requests, and generate reusable browser-automation scripts — a developer tool, not for non-technical users.

Open source

What to know▼

How it works: An open-source, token-efficient CLI that lets a coding agent inspect live web pages, reverse-engineer network requests, and generate deterministic browser-automation scripts.
What's different: Produces inspectable, runnable, debuggable scripts instead of having an agent improvise at runtime from a prompt.
Best for: Developers using coding agents who want reliable, reusable browser automations rather than one-off prompted actions.

Watched for 13 days · last checked 2d ago

Maptoolkit.org - free vector map server

Live

Lets developers add customizable vector maps to their projects instead of paying for commercial map APIs with sign-ups and rate limits.

FreeNo sign-upOpen source

What to know▼

How it works: Vector tile server built on OpenStreetMap and MapLibre with 3D terrain and hillshading.
Pricing: free, no API keys, no request limits

First seen today · last checked today

Comail

Live

A desktop email client that syncs your mailbox into local SQLite and searches it by meaning without cloud calls. Free, open source, no account or telemetry, for Gmail, Outlook or any IMAP inbox.

FreeNo sign-upOpen sourceNo tracking

What to know▼

How it works: Syncs your whole mailbox into a local SQLite database and lets you search it by meaning without any cloud calls, with keyboard-speed triage. Supports Gmail, Outlook, and any IMAP account, plus a CalDAV calendar.
What's different: Open source with no account and no telemetry.
Pricing: Free.
Best for: People who want a fast, keyboard-driven email client that keeps their mailbox local.

Watched for 12 days · last checked 6d ago

Inbix

Live

Open-source, Cloudflare-hosted email infrastructure for developers: disposable inboxes, webhook automation and REST/SDK/MCP access, aimed at testing and CI/CD pipelines.

Open source

What to know▼

How it works: Open-source, Cloudflare-native email infrastructure with disposable inboxes, real-time email receiving, webhook automation, and REST APIs, SDKs and MCP integration.
What's different: Open-source and Cloudflare-native, avoiding reliance on proprietary email infrastructure.
Best for: Developers needing email infrastructure for testing, CI/CD, or AI agents.

Watched for 10 days · last checked 4d ago

Microflow

Live

A set of open-source tools that simplify microcontroller prototyping for interactive projects — for hobbyist makers and hardware tinkerers, free forever.

Domain registered 4 months ago

FreeOpen source

What to know▼

How it works: A set of tools that simplify getting started with microcontroller prototyping for interactive projects.
Pricing: Free forever, fully open-source.
Best for: Hobbyist makers and hardware tinkerers prototyping interactive electronics.

Watched for 10 days · last checked 4d ago

Supercode

Live

An open-source terminal coding agent with full file, command and app access on your machine; you supply your own Claude, GPT or other API key to power it.

Open source

What to know▼

How it works: A terminal-native coding agent with full machine access — reads files, runs commands, edits code, opens apps, and searches the web — with granular permissions on each action, persistent memory, and voice control.
What's different: Runs natively in the terminal with no cloud IDE or web sandbox in between.
Pricing: Free to start with open models included (Deepseek, GLM, Minimax, Kimi); bring your own API key for Claude, GPT, or other providers.
Best for: Developers who want a terminal-based agent with direct, broad access to their own machine.
Watch out: Grants full machine access — file reads, command execution, and app control — governed by granular permissions rather than a sandbox.

Watched for 16 days · last checked 10d ago

RAI

Live

A self-hostable AI chat platform that routes queries to the cheapest LLM and adds live market data, positioned as an alternative to ChatGPT or Claude you run yourself. For developers and cost-conscious teams.

FreeOpen sourceSelf-hosted

What to know▼

How it works: A self-hostable, open-source AI chat platform that runs on your own infrastructure, integrates live financial market data into chat, and routes each query to the best/cheapest LLM automatically across OpenAI, Anthropic, SiliconFlow and others.
What's different: Self-hosted with full data ownership and no vendor lock-in, plus intelligent model routing claimed to cut API costs by up to 60% versus using a single provider.
Pricing: Free forever to self-host, with Free / Pro / MAX tiers and per-model quotas.
Best for: Developers and cost-conscious teams who want a ChatGPT/Claude alternative running on their own infrastructure.

Watched for 13 days · last checked 7d ago

LEVANI — AI Second Pilot for UAVs

Live

An AI copilot for drone/UAV operators that runs voice-guided preflight checks and flight analysis, built solo by a veteran and released open source.

Open source

What to know▼

How it works: Performs voice-guided preflight inspections for UAVs, analyzes flight parameters, and responds to live voice commands in Ukrainian; evolving toward a real-time AI copilot for an entire flight mission.
What's different: Built solo by a military veteran and released open source.
Best for: Drone/UAV pilots.
Watch out: Very early stage — described as going from a file on a laptop to a running prototype in one week.

Watched for 13 days · last checked 7d ago

Tokokino

Live

Lets makers turn plain screenshots into polished product videos in-browser instead of using a full video editor.

FreeOpen sourceCan export my data

What to know▼

How it works: Client-native WASM video generation with animated templates and auto-generated gradient backgrounds.
Pricing: free, open-source, watermark-free export

First seen today · last checked today

PGP Manager

Live

Lets people encrypt files with PGP without a GnuPG install instead of using command-line-only tools.

Works offlineOpen sourceNo tracking

What to know▼

What's different: compatible with GPG, Kleopatra, and Thunderbird
Pricing: free, MIT license

First seen today · last checked today

0tab AI

Live

Lets Chrome users open saved bookmarks with a keyboard shortcut instead of digging through bookmark menus.

FreeWorks offlineOpen source

What to know▼

How it works: Type a short code to open a page or a whole folder as a tab group; on-device AI adds tags and semantic search by default.
Pricing: free, open source

First seen today · last checked today

ContxtAI

Live

Lets people using multiple AI chatbots reuse the same project context instead of rewriting it each time they switch platforms.

FreeData stays with youOpen source

What to know▼

Pricing: free, open-source

First seen today · last checked today

Radar – Open Source Media Intelligence

Live

A self-hosted, open-source alternative to paid media monitoring tools like Talkwalker and Brandwatch, built on Claude AI. Needs technical setup — for developers, not a plug-and-play product.

FreeOpen sourceSelf-hosted

What to know▼

How it works: A self-hosted media intelligence and social listening platform built on free data sources and Claude AI, positioned as an alternative to Talkwalker or Brandwatch.
What's different: Self-hostable and built on free data sources instead of a paid, hosted monitoring subscription.
Best for: Developers comfortable running and maintaining their own self-hosted setup.

Watched for 15 days · last checked 9d ago

ChatterSift

Live

Monitors Reddit, Hacker News, LinkedIn and other communities for mentions of your brand, product or competitors from one dashboard. Built for founders, marketers and support teams doing social listening.

Open sourceSelf-hosted

What to know▼

How it works: An open-source social listening tool that lets you set custom keyword filters and surfaces relevant posts and comments in real time from Reddit, Hacker News, LinkedIn and other communities in a single dashboard, covering brand, product and competitor mentions.
What's different: Built on an open-source model rather than a closed enterprise platform.
Best for: Founders, marketers and support teams who want to monitor brand mentions, catch product feedback, or find buying-intent discussions across multiple communities from one place.

Watched for 17 days · last checked 10d ago

grindeasy · see what you're coding with

Live

Shows a live badge on your Discord profile of which AI coding tool you're using right now, by watching for session file changes — it never reads your code. Free, open source, opt-in leaderboard.

Domain registered 16 days ago

FreeOpen source

What to know▼

How it works: Watches for changes in your local AI coding tool's session files (Claude Code, Codex, Cursor, Gemini CLI, etc.) and shows a live badge on your Discord profile indicating which tool you're using right now.
What's different: Never reads your code, only detects when session files change; open source with an opt-in leaderboard.
Pricing: Free.
Best for: Developers who want to show off or track which AI coding tool they're using on Discord.

Watched for 10 days · last checked 4d ago

Coterm

Live

An open-source, self-hosted tool that lets two developers pair-program together on the same live Claude Code session, with the collaboration backend running in their own Cloudflare account.

Domain registered 18 days ago

Open sourceSelf-hosted

What to know▼

How it works: A fork of Mosaic/cmux adding self-hosted real-time pair programming; two developers share one live Claude Code session, with the backend deployed to their own Cloudflare account.
Best for: Development teams who want real-time pair programming with Claude Code without relying on a third-party hosted backend.

Watched for 10 days · last checked 7d ago

Yerd

Live

An open-source, Docker-free local PHP environment for macOS and Linux — automatic HTTPS, per-site PHP versions, zero-config sites. A direct alternative to Laravel Herd for developers.

Open sourceNo subscription

What to know▼

How it works: A local PHP development environment: park a folder and every project inside becomes instantly live at .test; issues per-site HTTPS certificates automatically; installs multiple PHP versions side by side, pinned per site; runs MySQL, MariaDB, PostgreSQL, Redis and an SMTP catcher as native processes supervised by one daemon; streams Laravel dump()/dd(), queries, jobs and requests to a dedicated window.
What's different: Open-source, rootless and Docker-free — a direct alternative to Laravel Herd, MIT licensed with every feature included.
Pricing: Open-source, no subscription.
Best for: macOS and Linux developers running local PHP/Laravel projects who want to avoid Docker.

Watched for 17 days · last checked 1d ago

QuorumRouter

Live

An open-source Deno framework for routing prompts across multiple AI models with validation and quorum checks, plus safety gates before agents can mutate a repository — built for developers wiring up AI agent systems, not an end-user product.

Open source

What to know▼

How it works: An open-source Deno framework with two paths: Best Route fans a prompt out to independent model adapters, validates responses with Zod, requires quorum, and synthesizes the strongest answer; Agent Chat gives multiple models shared conversation context to challenge and converge across turns. Any repository mutation requires external SafeLoop authority, exact-digest approval, watched execution and verified artifacts.
What's different: Adds a fail-closed safety gate before agents can mutate a repository, rather than trusting agent output directly.
Best for: Developers building multi-model AI agent systems who need validation and safety checks before code changes land.

Watched for 14 days · last checked 8d ago

Overrule

Live

An open-source governance layer that intercepts and enforces policies on every LLM call in production, streaming an audit trail to the cloud without adding a proxy.

Domain registered 17 days ago

Open source

What to know▼

How it works: Intercepts LLM calls, enforces policies locally in sub-millisecond time, and streams proof of compliance to a cloud audit trail.
Pricing: Free to start ($0).
Best for: Developers running production AI who need real-time policy enforcement and an audit trail.

Watched for 10 days · last checked 7d ago

YAML2JSON

Live

Converts YAML to JSON and back entirely in your browser, including multi-document Kubernetes manifests, with line-numbered parse errors, your config never leaves the browser.

Domain registered 21 days ago

FreeNo sign-upWorks offlineData stays with you

What to know▼

How it works: Converts YAML to JSON and back entirely in the browser, including multi-document files like Kubernetes manifests, with line-numbered parse errors.
What's different: Runs offline once loaded and your config never leaves the browser; the conversion core is open source.
Pricing: Free, no signup.
Best for: Developers who need to convert Kubernetes manifests or other YAML/JSON files without uploading them anywhere.

Watched for 13 days · last checked 7d ago

Impri

Live

An open-source approval inbox that pauses AI agent actions until a human approves, edits or rejects them via Slack, Discord, Telegram or the web - self-hostable for teams running agents.

Domain registered 17 days ago

Open sourceSelf-hosted

What to know▼

How it works: An approval inbox that pauses AI agent actions, such as sending an email, posting a comment, or running a command, until a human approves, edits or rejects them via Slack, Discord, Telegram, mobile or web.
What's different: The approval gate is a data dependency the agent can't skip, not just a prompt instruction.
Pricing: Open source (MIT), self-hostable.
Best for: Teams running AI agents who want a human-in-the-loop approval step before actions execute.

Watched for 13 days · last checked 7d ago

LineSolv

Live

An open-source desktop calculator that parses phrases like '20% of 150' plus unit conversion and graphing, a general tool despite the developer-flavored tech stack.

Open source

What to know▼

How it works: A cross-platform desktop calculator that parses natural-language phrases like '20% of 150' or '5 kg in pounds', with unit conversion, function graphing and step-by-step evaluation.
What's different: Built with Go + Wails for a roughly 25 MB binary that starts instantly, versus heavier calculator apps.
Pricing: Free and open source, MIT licensed.

Watched for 14 days · last checked 8d ago

Markhand

Live

A free, open-source tool for drawing and practicing your signature with custom pens and guides, then exporting it as PNG or SVG. General-purpose, not a developer tool.

FreeNo sign-upOpen sourceCan export my data

What to know▼

How it works: A tool for drawing and practicing your signature with customizable pens and guides, then exporting it as PNG or SVG.
Pricing: Free, open source, no sign-up required.
Best for: Anyone who wants to design or practice a personal signature and export it as an image.

Watched for 16 days · last checked 1d ago

ChorusGraph

Live

An open-source Python agent runtime, installed with one pip command, with a local cache that skips repeat LLM calls — pitched as a lighter alternative to LangGraph for developers.

Open source

What to know▼

How it works: An open-source agent graph runtime with a BSP scheduler and a local semantic cache that skips redundant LLM calls when a similar routing request already happened, installed with a single pip command.
What's different: Positioned as a lighter, non-wrapper alternative to LangGraph, with a local cache to cut LLM call costs.
Pricing: Open source (Apache-2.0).
Best for: Developers building LLM agent pipelines who want to reduce redundant model calls.

Watched for 16 days · last checked 9d ago

Batuk is a sovereign AI chat workspace

Live

Gives teams a sovereign AI chat workspace connecting multiple models instead of depending on one vendor's cloud.

Open source

First seen today · last checked today

Folio

Live

A free open-source Chrome extension that remembers your profile once and auto-fills job application forms - for anyone job hunting, not just developers.

FreeOpen source

What to know▼

How it works: A Chrome extension where you set up your profile once, then click a button to have it auto-fill job application forms instead of retyping your resume information each time.
What's different: Open source and free, aimed specifically at ending the repetitive 'upload resume, retype everything' cycle of online job applications.
Pricing: Free and open-source.
Best for: Job seekers submitting many applications who are tired of manually retyping the same information into different forms.

Watched for 15 days · last checked 9d ago

SuperCompress

Live

Open-source API that compresses prompts before OpenAI, Claude, Gemini or RAG calls, cutting token costs by about 65% while keeping the important content. For developers wiring it into their own LLM calls.

Open source

What to know▼

How it works: An open-source API that compresses prompts before they're sent to OpenAI, Claude, Gemini, RAG, chatbot, or agent calls, stripping tokens while preserving the evidence needed to answer correctly.
What's different: Claims to remove more than 65% of tokens on average while preserving over 98% of answer-critical content.
Best for: Developers wiring their own LLM calls who want to cut token costs without integrating a full new pipeline.

Watched for 16 days · last checked 10d ago

mercator

Live

An open-source SDK that serves weather, ocean and elevation data as map tiles with values baked into the pixels, so you can restyle colormaps or switch to contours client-side without refetching. For developers.

FreeOpen source

What to know▼

How it works: Serves weather, ocean and elevation data as map tiles with the physical values baked directly into the pixels and decoded on the GPU, so you can change colormaps, switch to wind streamlines or contours, or re-scale client-side without refetching.
What's different: One open-source SDK works across MapLibre, Mapbox, Leaflet, OpenLayers, deck.gl and React, and the tile format is documented so you can decode it yourself without being locked to their renderer.
Pricing: Transparent pricing with a free tier.
Best for: Developers building map-based visualizations of weather, ocean or elevation data.

Watched for 14 days · last checked today

QuantJourney Backtester

Live

An open-source Python backtesting engine that traces trading signals through weights, orders, fills, and performance for reproducible research, for quant developers, instead of building a custom backtester from scratch.

Domain registered 19 months ago

Works offlineOpen source

What to know▼

How it works: Supports vectorized research or order-aware simulation with transaction costs, walk-forward testing, 80+ metrics, and 25+ charts; runs locally, with optional managed market data through an API.
Pricing: Open-source and runs locally; managed market data available through a paid API.

Watched for 12 days · last checked 8d ago

Aurict

Live

An open-source AI workspace bridging terminal, a local-first desktop app and mobile remote control using your own API keys for Anthropic, OpenAI or Gemini — built for developers wanting provider flexibility.

Domain registered 7 months ago

Works offlineOpen source

What to know▼

How it works: An open-source AI workspace where you bring your own API keys for Anthropic, OpenAI, or Gemini, bridging a terminal, a local-first desktop app, and mobile remote control with a command approval mechanism.
What's different: Open-source and provider-independent — no lock-in to a single AI model provider — with a secure command approval step for agent actions.
Best for: Developers who want to run AI agents across terminal, desktop, and mobile using their own API keys instead of a single vendor's app.

Watched for 12 days · last checked 9d ago

Opensource UI

Live

An open-source library of 116 customizable UI components across 33 categories, for developers and designers building interfaces.

Open source

What to know▼

How it works: A library of 116 handcrafted, customizable UI components spanning 33 categories that you can browse and drop into your own interfaces.
Pricing: Open source.
Best for: Developers and designers who want polished, ready-made UI components instead of building them from scratch.

Watched for 15 days · last checked 9d ago

Telemetry Tracker

Live

An open-source, self-hostable observability platform for developers to collect errors, events, sessions, and analytics via custom SDKs and view them in a multi-tenant dashboard.

Domain registered 25 days ago

Open sourceSelf-hosted

What to know▼

How it works: Custom SDKs send errors, events, sessions, and analytics data to a self-hosted, multi-tenant dashboard with organization/project management, API keys, and usage metering.
Best for: Developers who want self-hosted, open-source production observability instead of a third-party SaaS.

Watched for 10 days · last checked 4d ago

Showing the first 200 of 557 — ordered by how strong the evidence is, then by standing. Narrow it with a filter to see the rest.

Open-source tools — the short answers

Every number here comes from our own daily check — not from a vendor list.

Open-source tools — how many are there?: Tablif is tracking 557 of them. 520 answered our check today, and 31 we couldn't reach — we don't claim those are dead.
Which ones are still maintained?: Tablif knocks on every door once a day and records the answer. 520 of these 557 responded on the latest run, so that number is what "still here" means on this page — not a review score.
Are any of them free?: 180 of the live ones say so in their own words, and 66 let you start without making an account. Tablif records the claim the product makes; we don't verify pricing.
Any open-source options?: 520 of the live ones on Tablif mention being open source.
What's the newest one?: Taleshape — Tablif first saw it today.
Did a person actually look at these?: 557 of them Tablif opened and read, then wrote a one-line summary in our own words instead of reusing the founder's tagline. The rest carry keyword labels we haven't confirmed by reading yet — and we say so rather than hiding it.