Tools that don't upload your data — Runs on Windows

27 match your filters — 27 of them answered our check today.

Watching this group for 18 days · how we check

This week10 new arrivals

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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 5 days · last checked today

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Kaptur

Live

Local screenshot manager for Windows that OCRs every screenshot so you can search them by text later, with nothing uploaded to the cloud.

Works offlineData stays with you

What to know▼

How it works: Watches folders, extracts text via OCR, makes screenshots searchable.
What's different: 100% local, no cloud upload or subscription.
Watch out: Windows only.

Watched for 5 days · last checked today

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Local Waifu

Live

An offline AI companion app for people who want an ongoing personalized chat relationship without their conversations ever leaving their own computer.

Domain registered 2 months ago

Works offlineData stays with you

What to know▼

How it works: A desktop AI companion for Mac and Windows that runs entirely offline, remembering past interactions and learning about the user over time to build a personalized relationship.
What's different: All processing happens locally on the machine rather than in the cloud.
Pricing: No recurring subscription fees.
Best for: People who want an ongoing personalized AI companion without their conversations leaving their computer.

Watched for 9 days · last checked 9d ago

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InfinityGuard

Live

A local Windows security suite with antivirus, AI ransomware detection, a DNS shield, VPN, identity monitoring, and a telemetry blocker that stops manufacturers from phoning home.

No sign-upWorks offlineData stays with youNo subscription

What to know▼

How it works: 100% local, one-time payment, no cloud, no subscription, no account required; data never leaves the machine.
Watch out: blocks telemetry from Microsoft, AMD, HP, NVIDIA, and Intel.

Watched for 7 days · last checked 6d ago

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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 7 days · last checked 6d ago

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HeicToPng

Live

Fixes the iPhone-photo compatibility problem by converting HEIC to PNG locally in your browser, nothing uploaded to a server, no account, no app to install.

Domain registered 7 months ago

FreeNo sign-upNothing to installData stays with you

What to know▼

How it works: Converts HEIC photos from iPhones/iPads into PNG, JPG or WebP directly in the browser; supports batch conversion of up to 100 files at once with no file-size limits.
What's different: Conversion runs entirely on-device — photos are never uploaded to a server or stored.
Pricing: Free, no sign-up required.
Best for: People who need to convert iPhone HEIC photos for apps, websites or Windows PCs that can't open the format, without uploading personal photos.

Watched for 14 days · last checked 8d ago

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Resume Builder by Shiva Kar

Live

A free, open-source resume builder with a live side-by-side preview and ATS-friendly PDF export that runs entirely in your browser instead of behind a paywall.

FreeWorks offlineData stays with youOpen source

What to know▼

How it works: granular typography and color controls, everything processed locally; standalone Windows apps also available
Pricing: free
Best for: job seekers who want a private, no-paywall resume builder

Watched for 11 days · last checked 5d ago

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LocalParrot

Live

Converts speech to text entirely on your Windows PC — no cloud, no account required, works even with WiFi off. For users who want dictation without sending audio anywhere.

No sign-upWorks offlineData stays with youPay once

What to know▼

How it works: Converts speech to text directly on a Windows PC using one shortcut: hold, speak, release, and the text lands wherever your cursor is, in any app.
What's different: Works entirely offline with no cloud processing, no account, and no subscription — it keeps working even with WiFi off.
Pricing: One-time payment, no subscription.
Best for: Windows users who want dictation in any app (email, chat, notes, code editors) without their voice data leaving the device.

Watched for 16 days · last checked 10d ago

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FastCompressor

Live

Compresses images and video (JPG, PNG, TIFF, MP4, GIF) entirely on your device with no upload to a server — for Mac, Windows and Linux, privacy-focused.

Works offlineData stays with you

What to know▼

How it works: Compresses JPG, PNG, TIFF, MP4 and GIF files, processing them locally on-device rather than uploading them to a server, via web tools or a dedicated offline desktop app for Mac, Windows and Linux.
What's different: Local, privacy-focused processing rather than server-side upload-based compression.
Best for: Anyone who wants to compress images or video without sending files to a third-party server.

Watched for 18 days · last checked 11d ago

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ScreenGlimpse

Live

A free screen recording app for Windows, macOS, Linux, and web that automatically zooms the cursor on clicks, processing everything on-device without upload.

FreeNo sign-upWorks offlineData stays with you

What to know▼

How it works: Highlights the cursor and auto-zooms on clicks during recording, with no upload or account required to start.
Pricing: Free.
Best for: People who want a directed-looking screen recording without manual editing or cloud upload.

Watched for 12 days · last checked 6d ago

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SlangBit

Live

Select text in any Windows app, press Alt+Z, and get it translated using local AI models — nothing leaves your device. No subscription; 30-day free trial.

Domain registered 1 month ago

Works offlineData stays with youNo subscription

What to know▼

How it works: Select text in any Windows app and press Alt+Z to have it translated locally and pasted back automatically.
What's different: Runs entirely offline using local AI models, so text never leaves the device.
Pricing: No subscriptions; includes a 30-day free trial.
Best for: Windows users who want in-place translation without switching apps or sending text to the cloud.

Watched for 12 days · last checked 6d ago

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AuroShot

Live

A lightweight Windows screenshot tool with fast capture, 10+ annotation tools and local-only storage, built for a clean everyday screenshot flow rather than heavy workflows.

Works offlineData stays with you

What to know▼

How it works: A Windows screenshot tool with fast capture modes for screen, window or selected area, plus 10+ annotation tools, automatic clipboard copy and local saving.
What's different: A floating capture panel designed not to steal focus from work or games, with local-first storage — screenshots stay on the device.
Best for: Windows users who want a clean, everyday screenshot flow without a heavy or noisy tool.

Watched for 12 days · last checked 6d ago

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HandyTools

Live

15 free browser-based developer tools, JSON formatter, regex tester, encoders, generators, styled with a nostalgic Windows 95 look. Runs in the browser, not installed, nothing uploaded to a server.

Domain registered 9 months ago

FreeNo sign-upNothing to installData stays with you

What to know▼

How it works: 15 free developer and productivity tools — JSON formatter, regex tester, base64/URL encoders, UUID and password generators, unit and color converters — running entirely in the browser with a Windows 95-styled interface.
What's different: Nothing is uploaded to a server; everything runs client-side with no signup, ads or tracking.
Pricing: Free.
Best for: Developers who want quick browser-based utility tools without installing anything.

Watched for 13 days · last checked 7d ago

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Packet Capture Pro

Live

A desktop packet-capture and network-debugging tool for Windows and macOS that can mirror traffic live from a paired iOS or Android app, keeping all data on-device. For developers.

Data stays with you

What to know▼

How it works: A desktop packet capture and network debugging tool for Windows and macOS that captures and decrypts HTTP/HTTPS traffic, inspects JSON/XML/HTML, compares requests/responses, and replays requests to reproduce bugs. Pairs with a mobile PCP app to mirror traffic live from Android and iOS devices.
What's different: Mirrors mobile device traffic to the desktop in real time without requiring root or jailbreak on the mobile device.
Best for: Developers debugging network traffic across desktop and mobile apps.
Watch out: All data stays on the user's device and is never uploaded to a server.

Watched for 13 days · last checked 7d ago

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Share2Me

Live

Sends files and clipboard text directly between devices over encrypted peer-to-peer connections, no account or cloud storage.

Data stays with you

What to know▼

How it works: WebRTC transfer with end-to-end AES-256 encryption via QR code or link
What's different: No sign-up, no upload limits
Best for: quick cross-device transfers across Windows, macOS, Linux, iOS, Android

Watched for 4 days · last checked 3d ago

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Ledgora

Live

A Windows desktop app that forecasts your cash flow and bills using only local data, no cloud sync.

Data stays with you

What to know▼

How it works: Local-only tracking of income, debts, balances, and what-if scenarios
What's different: Works without constant internet access, unlike cloud budgeting apps
Best for: Windows users wanting private financial forecasting
Watch out: Windows only

Watched for 4 days · last checked 3d ago

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AirSign

Live

A Windows desktop app for signing PDFs by hand, entirely offline, so sensitive documents never touch the cloud.

Domain registered 7 days ago

Works offlineData stays with youPay onceNo subscription

What to know▼

How it works: Drag and drop a PDF/image, draw a signature, add text — all processed locally
What's different: Zero cloud upload, one-time purchase instead of subscription
Pricing: One-time purchase
Best for: Professionals who don't want to upload contracts to third-party e-signature sites

Watched for 6 days · last checked 5d ago

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Eleganote

Live

A local-first notebook combining handwriting, rich documents and PDF markup in one workspace, for students and professionals tired of juggling multiple note apps.

Works offlineData stays with youNo adsNo tracking

What to know▼

How it works: A local-first notebook combining handwriting (ink, pens, highlighters, shapes, lasso selection), rich text boxes, tables, images, audio memos, and PDF import with searchable text, all on a multi-page canvas organized with folders and tags.
What's different: Combines handwriting, structured documents and PDF markup in one workspace instead of forcing a choice between separate apps, without ads or tracking SDKs.
Best for: Students, professionals and creators who currently juggle multiple note apps and want handwriting, documents and PDF annotation in one place.

Watched for 18 days · last checked 2d ago

Details →

NudgeFile

Live

A Windows app that auto-sorts, renames and routes your Downloads, Screenshots and Documents using local AI via Ollama — nothing leaves your device.

Data stays with you

What to know▼

How it works: A Windows desktop app that watches selected folders and automatically renames, sorts and routes files using local AI, with duplicate detection and undo-safe operations.
What's different: Runs entirely on-device through Ollama rather than sending files to the cloud.
Best for: Windows users with messy Downloads, Screenshots or Documents folders who want automatic organization without a cloud service.
Watch out: Requires a local Ollama installation to power the AI features.

Watched for 14 days · last checked 2d ago

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Prizmi

Live

An AI assistant that drafts messages, organizes files, and fills out forms and flight check-ins on its own, installed on your computer for everyday tasks.

Works offlineData stays with you

What to know▼

How it works: You message Prizmi in plain language and it acts on your phone or computer — drafting texts and emails, organizing files, filling out web forms and flight check-ins, and running scheduled tasks — while proactively reaching out when it notices something matters.
What's different: Takes action directly on your connected devices rather than just answering questions, but never clicks Submit or Pay itself, keeping the user in control of final actions.
Best for: Anyone wanting a proactive assistant that runs tasks on their own Mac, Windows or Linux machine, described as built for grandparents through developers.

Watched for 18 days · last checked today

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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 3 days · last checked 3d ago

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MemoryOS

Live

Fully offline local semantic file search for Windows powered by embedded local AI models.

Works offlineData stays with you

What to know▼

How it works: 100% local semantic search for Windows files, powered by embedded local AI models, searching by context and meaning instead of exact filenames.
What's different: Completely offline — zero data leaves the machine.

Watched for 3 days · last checked 2d ago

Details →

Patterns

Live

Private OCD/ERP tracker across desktop and mobile that logs obsessions, compulsions, triggers and exposure practice with no cloud sync.

Domain registered 20 days ago

No sign-upWorks offlineData stays with youNo ads

What to know▼

How it works: Tracks obsessions, compulsions, mood and exposure exercises across iOS/Android/desktop
What's different: No accounts, no cloud sync — data stays on-device
Best for: People doing ERP therapy who want a private tracking journal

Watched for 6 days · last checked today

Details →

Blurwise: Offline Face Blur

Live

A Windows desktop app that automatically detects and blurs faces across video frames, processing entirely offline with no upload.

No sign-upWorks offlineData stays with you

What to know▼

How it works: Drop in one video or fifty; AI detects and blurs every face across all frames, with tracking to keep faces covered when they turn or leave and re-enter frame, without keyframing or masks.
What's different: Runs entirely locally on Windows with no upload, cloud, or account.
Watch out: Windows only.

Watched for 10 days · last checked 7d ago

Details →

Kairon Browser

Live

A minimalist, privacy-focused web browser for Windows currently in beta.

Data stays with you

What to know▼

How it works: A minimalist, privacy-first browser for Windows.
Watch out: Currently in beta (1.0).

Watched for 10 days · last checked 7d ago

Details →

SnailText

Live

Offline on-device speech to text for Mac and Windows

No sign-upWorks offlineData stays with you

First seen today · last checked today

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LumenPass - Password Manager

Live

A password manager built on the open, KeePass-compatible KDBX format, storing logins, passkeys, cards and TOTP codes in one encrypted vault with Face ID autofill.

Domain registered 3 months ago

Data stays with youNo adsNo tracking

What to know▼

How it works: Stores logins, passkeys, credit cards, secure notes and TOTP codes in an encrypted vault, built on the open KDBX format compatible with KeePass and KeePassXC, with one-tap AutoFill and Face ID across iPhone, iPad, Mac, Windows and Linux.
What's different: Uses the open KDBX format instead of a proprietary vault, so you're not locked into one vendor, with zero-knowledge on-device encryption before sync.
Best for: People wanting a KeePass-compatible password vault across Apple, Windows and Linux devices without vendor lock-in.

Watched for 13 days · last checked 2d ago

Details →