Tools that work offline, on your own device — API / SDK

30 match your filters — 30 of them answered our check today.

Watching this group for 19 days · how we check

This week18 new arrivals

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GreenBar Systems

Live

Local-first AI tooling for finance teams' monthly close (bank reconciliation, CSV sorting, PDF parsing, cash forecasting) that keeps sensitive financial data off cloud AI services.

Domain registered 2 months ago

Works offlineData stays with you

What to know▼

How it works: Local-first AI tools for finance teams' monthly close — bank reconciliation, sorting CSV line items, parsing PDFs, and building 90-day cash forecasts — without uploading sensitive financial data to cloud AI services.

Watched for 7 days · last checked 1d ago

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DocImprint

Live

Generates tamper-evident cryptographic proofs of document contents for AI agents, so legal and compliance teams can verify what an agent actually read.

FreeWorks offline

What to know▼

How it works: POST endpoint turns PDFs/URLs into SHA-256 manifests and Merkle citations
What's different: free offline verification, pay-per-call with USDC
Pricing: free offline verify; pay-per-call via x402 USDC
Best for: legal, finance, and compliance teams using AI agents on documents

Watched for 5 days · last checked today

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CodePrettify

Live

A local, no-telemetry workspace for formatting, validating, and comparing JSON/code/data files, for developers who don't want to paste API responses into a cloud tool.

FreeWorks offlineNo tracking

What to know▼

How it works: Tree view, JSONPath queries, document diff, malformed JSON repair, format conversion, JWT/Base64 decode, typed code generation
What's different: Runs locally in browser or as a Windows app, no cloud upload or telemetry

Watched for 1 day · last checked 1d ago

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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

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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

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Pulse Request Runner

Live

Replays Chrome Network requests locally so developers can debug APIs without sending request data to a hosted workspace, instead of using cloud-based API clients.

Works offline

What to know▼

How it works: Copy any Network request as cURL, import into Pulse, edit and rerun locally; supports collections, JSON paths, diffs, validation tests, exports.
What's different: Local-first, no data sent to a hosted workspace.
Best for: Developers debugging from Chrome DevTools.

Watched for 1 day · last checked today

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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

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PostPilot for X

Live

Scores your X post's hook strength and engagement-killing patterns as you type, using your own Claude API key locally, instead of guessing whether a post will perform before posting.

FreeWorks offline

What to know▼

How it works: Scores hook strength (20 types), specificity, and 79 engagement-killing patterns while typing; runs locally with your own Claude API key.
Pricing: Free forever; Pro is $5/mo for voice-learning across 13 dimensions and thread scoring.

Watched for 1 day · last checked today

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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

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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

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Resso

Live

A visual canvas for cataloging servers, domains and repos with built-in SSH and SFTP, auto-imported from GitHub, GCP, Vercel and more — for developers and solopreneurs managing their own infrastructure.

Works offline

What to know▼

How it works: A visual canvas that catalogs servers, domains, repos and other infrastructure in one place, auto-importing assets from GCP, OCI, Vercel, GitHub, Cloudflare, App Store Connect and UpCloud. Includes a built-in SSH console, SFTP browser, dependency mapping and an HTTP API.
What's different: Local-first and private with iCloud sync, rather than a hosted SaaS that stores your infrastructure data centrally.
Best for: Developers, DevOps engineers and solopreneurs managing scattered infrastructure across multiple cloud providers.

Watched for 15 days · last checked 9d ago

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Aiden

Live

A physical open-source USB device that watches your screen and can operate your phone or computer by voice, entirely offline with zero data collection. Built for makers and privacy-focused tinkerers.

Works offlineOpen sourceSelf-hosted

What to know▼

How it works: A physical USB device that plugs into any phone or computer, watches the screen over HDMI, and sends taps and keystrokes over USB HID to operate real apps the same way a person would — no app install, jailbreak, developer mode, or API required. It captures the screen, sends it to an AI model of your choice, decides the next action, and repeats until the task is done; voice mode runs on-device.
What's different: Works one layer below software integrations, so it can operate any app you can see and tap, including ones with no API or accessibility layer.
Best for: Makers and privacy-focused users who want to automate phone or computer tasks entirely offline without granting an app API access.

Watched for 17 days · last checked 1d ago

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FocusClaw

Live

A local-first persistent task-context store with an API that AI agents (and humans) can read and write to, so agent workflows keep project context across sessions.

Works offline

Watched for 1 day · last checked 1d ago

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Detectnix Vision Adult Content Scanner

Live

A Windows app that scans local image files for adult and NSFW content entirely offline, with no cloud uploads. For individuals and enterprise IT wanting to audit stored images without sending them off-device.

Works offline

What to know▼

How it works: Scans JPG, JPEG, PNG, WEBP and BMP files across selected folders (recursively in Retail and Enterprise editions) using on-device AI models to detect explicit and nude images, with results reviewable in a gallery and exportable to CSV; GPU acceleration via NVIDIA CUDA or DirectML is used automatically when available.
What's different: Entirely offline with no cloud uploads or third-party processing of scanned images.
Pricing: Available as a free trial, a one-time Retail license, or an Enterprise subscription.
Best for: Individuals and enterprise IT teams on Windows 10/11 who want to audit stored images for adult content without sending them off-device.

Watched for 15 days · last checked 9d ago

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Aurora

Live

Runs real statistical and causal analysis locally instead of letting an LLM guess, citing every result to its source. Built for technical users via its MCP server and Python SDK.

Works offlineOpen source

What to know▼

How it works: Runs 24+ research-grade quantitative methods locally on a dataset you drop in — anomaly detection, causality, regime detection, forecasts — with every finding cited to the method and source behind it. Includes an MCP server and Python SDK for AI agents to call it for verified math.
What's different: Computes real statistics locally instead of having an LLM guess at numbers, with a "0 fabricated" indicator guaranteeing no invented figures.
Pricing: Open source, Apache 2.0.
Best for: Developers and technical users who need verified quantitative analysis, including AI agents that call it programmatically.

Watched for 14 days · last checked 8d ago

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PWAA

Live

Packs an entire web app or documentation site into a single offline ZIP file that runs without breaking on JS/CORS restrictions, unlike typical offline export formats.

Works offlineOpen source

What to know▼

How it works: Maps a ZIP to memory and spins up a local HTTP server so the packed app 'thinks' it's online
What's different: Open source, avoids CORS breakage that plagues other offline formats

Watched for 4 days · last checked 3d ago

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Reamer

Live

Local-first backtesting infrastructure for quantitative trading strategies written in Python, verified with deterministic tick replay.

FreeWorks offline

What to know▼

How it works: Python strategies run through a C++ engine with deterministic synthetic ticks checked against a 282-point spec
Pricing: Free GUI; licensed SDK with a free test license on request

Watched for 4 days · last checked 2d ago

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Prompt Compass

Live

Routes each AI prompt to the cheapest capable model and blocks PII/jailbreak attempts locally, cutting AI API costs for developers.

Domain registered 4 months ago

Works offline

What to know▼

How it works: On-device ~5ms routing decision per prompt
What's different: Claims up to 96% cost cut by avoiding always-expensive-model routing
Pricing: Free tier, npm SDK and VS Code/Cursor extension

Watched for 5 days · last checked 4d ago

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RakshIQ

Live

A self-hosted, offline API that detects and redacts personal data, including India-specific identifiers, before it reaches an AI model, so data never leaves your infrastructure.

Works offlineData stays with youSelf-hosted

What to know▼

How it works: Detects and redacts PII such as Aadhaar, PAN, GSTIN, IFSC, and UPI, with a Presidio-compatible drop-in API, multilingual Hindi/English name and place detection, and checksum plus libphonenumber validation to reduce false positives.
Best for: Teams building AI pipelines in or for India who can't send data to third parties.

Watched for 10 days · last checked 7d ago

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Mobile LLM Server

Live

Turns an Android phone into a local, offline AI server running open models like llama.cpp, exposing an OpenAI-compatible API on-device for privacy and low latency.

Works offline

What to know▼

How it works: Turns an Android phone into a local AI server, running open models like llama.cpp/GGUF fully on-device and exposing an OpenAI-compatible API.
What's different: Runs entirely on-device rather than calling a cloud API, unlike typical cloud-based AI apps.
Best for: Developers who want private, low-latency local LLM inference on Android without sending data to the cloud.

Watched for 15 days · last checked 2d ago

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Keylight

Live

License and entitlement infrastructure for Apple apps: a Swift SDK with offline verification, device limits, trials and Stripe-based license minting, for developers who don't want to build licensing from scratch.

Works offline

What to know▼

How it works: Licensing and entitlement infrastructure for Apple apps: drop in a Swift SDK and verify entitlements locally using offline-ready Ed25519 leases, with device limits, trials and feature flags built in. Connect Stripe and licenses mint automatically from payments.
What's different: Offline-capable local entitlement verification plus automatic Stripe-driven license minting, rather than needing to build licensing infrastructure from scratch.
Best for: Developers of Apple apps who need licensing, trials and device limits without building that infrastructure themselves.

Watched for 17 days · last checked 10d ago

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Privent 2.0

Live

Tokenizes PII and secrets before they reach an LLM in n8n workflows, reversing it only at a trusted sink.

Works offline

What to know▼

How it works: Tokenizes PII and secrets before they reach an LLM in n8n workflows, then reverses the tokenization safely at a trusted sink.
What's different: Unlike n8n's own Guardrails redaction, the original data can come back.
Watch out: Official n8n Integration Partner; a local mode runs fully offline.

Watched for 2 days · last checked 2d ago

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Sonora

Live

Offline Windows speech studio offering local text-to-speech, speech-to-text and system-wide dictation with a local API.

Works offlineData stays with you

What to know▼

How it works: A Windows speech studio offering multi-engine local TTS with custom voices, speech-to-text with speaker labels, global hotkey dictation into any field, and a localhost HTTP API for scripts and AI agents.
Watch out: Runs fully offline after models download; works on GPU or CPU.

Watched for 2 days · last checked 2d ago

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Fludi Leads

Live

Lead-gen tool that queries Google Places live to find local businesses missing a website or with a lapsed domain.

Works offlinePay onceNo subscription

What to know▼

How it works: Queries Google's official Places API live to verify businesses are operational, surfacing leads with no website, only a social page, or a lapsed domain.
Pricing: No subscription; pay once, see exact lead count and price before paying, with instant CSV delivery.

Watched for 2 days · last checked 2d ago

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AVIF to PNG Converter

Live

A browser tool that converts AVIF images to PNG locally using the Canvas API, without uploading files.

Nothing to installWorks offline

What to know▼

How it works: Converts AVIF images to PNG entirely in the browser using the Canvas API — files are never uploaded or stored.
Pricing: Free, no installation, account, or subscription.
Watch out: Once loaded, it can work offline.

Watched for 7 days · last checked 5d ago

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Ceiling

Live

A Windows taskbar utility that tracks remaining usage limits and reset times across Claude, Codex, Cursor, and other AI tools.

FreeWorks offline

What to know▼

How it works: Keeps your remaining AI capacity and reset times visible above the Windows taskbar, alerting you when a limit comes back early or partially restores; hovering shows per-model and per-project breakdowns and an equivalent API cost.
Pricing: Free and local-first.
Watch out: Windows only; works with Claude, Codex, Cursor, Gemini, and Copilot.

Watched for 7 days · last checked 5d ago

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Atelier

Live

An open-source desktop AI app that works inside document editing, mail merge, and receipt reading, running fully locally on Mac and Linux.

Domain registered 1 month ago

Works offlineOpen source

What to know▼

How it works: Brings AI into everyday tools like document editing, mail merge, and receipt reading, running fully locally so files never leave your machine.
What's different: Open source (AGPL-3.0), fully forkable, built with Tauri, Rust, React, and SQLite.
Watch out: Runs on Mac and Linux only.

Watched for 9 days · last checked 3d ago

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schemafit

Live

A CLI linter that statically checks JSON schemas against each LLM provider's constraints so they don't fail at runtime.

Works offline

What to know▼

How it works: A CLI that statically lints JSON schemas/tool definitions against each LLM provider's documented constraints (e.g. Anthropic-rejected keywords, missing additionalProperties), pointing to the exact JSON-Pointer path and reason, with a repair pass that emits a best-effort provider-valid variant.
What's different: Makes no model calls, needs no API key, and has zero runtime dependencies.
Best for: Teams whose schemas work on one LLM provider but 400 on another.

Watched for 2 days · last checked 2d ago

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Crosspost Checker

Live

Browser extension that detects and tracks Reddit crossposts and duplicate content in real time.

Works offlineNo tracking

What to know▼

How it works: Detects Reddit crossposts and duplicate content in real time by tracking lineage, timeline and shared URLs via a side panel next to the Share button.
What's different: 100% local processing using Reddit's public API, no tracking.
Best for: Reddit users tracking how content spreads across subreddits.
Watch out: Requires a Reddit login.

Watched for 2 days · last checked today

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dashAI:Interactive ML,No code,LocalFirst

Live

Open-source, local-first desktop app for training, evaluating and explaining ML models without cloud services.

Works offlineOpen source

What to know▼

How it works: Local-first desktop app for importing data, training predictive and generative models, evaluating them, and applying explainability techniques, without cloud services, external authentication, or API keys.
Pricing: Open source.

Watched for 2 days · last checked 2d ago

Details →