ToolKnit.com is a curated collection of 92 free, private, browser-based tools.
No signup. No uploads. No data leaves your device. Built by one developer.
toolknit.com  · All Tools  · Changelog
We open-source individual tool engines as standalone, zero-dependency demos:
| Project | Description | Stars | Demo |
|---|---|---|---|
| Silk Screen Halftone | Pure JS CMYK halftone engine — real dots, screen angles, tri-color |  |
Live |
| Lyric Wave Player | Immersive audio visualizer — real-time waveform + synced LRC lyrics |  |
Live |
| Image Compressor | Lossless PNG/GIF compression in the browser |  |
Live |
| Category | Count | Highlights |
|---|---|---|
| PDF Suite | 5 | Merge, Split, Compress, Page Number, PDF Tools |
| Image Tools | 18 | Silk Screen Filter, HEIC to JPG, Pixel Art, Remove BG, WebP to PNG |
| Video Tools | 4 | Screen Recorder, Trim, Crop, Speed |
| Audio Tools | 6 | MIDI Keyboard, Lyric Visualizer, BPM Detector, Vocal Remover |
| Text Tools | 11 | Text Animation Maker, Counter, Diff Checker, Lorem Ipsum |
| Calculator | 7 | Loan, Mortgage, BMI, Tip, Discount, Age |
| Time Tools | 6 | Countdown Timer, Age Calculator, Timestamp Converter, Pomodoro |
| Creative | 29 | Color Palette, Gradient, Emoji Finder, QR Code, Favicon Generator |
| AI Tools | 4 | Background Remover, SVG Generator, Photo Restore, Image Upscaler |
| Self-Test | 2 | MBTI Test, Quit Smoking Tracker |
| Metric | Value |
|---|---|
| Total Tools | 92 |
| Blog Posts | 87 |
| Ahrefs DR | 41 |
| Languages | English + Chinese (bilingual coverage is expanding) |
| Bing Rankings | 2-20 for competitive terms |
| Launched | March 2026 |
| Stack | Pure HTML/CSS/JS, zero framework, Cloudflare Pages |
Most online tools require signups, upload your data to servers, or are wrapped in ads. ToolKnit is different:
- No backend — everything runs in the browser via Canvas, Web Audio, and the File API
- No signup — just open a tool and use it
- No uploads — files stay on your device
- No tracking — minimal analytics, no third-party marketing scripts
- Bilingual — English + Chinese, with more languages planned
This repository is a curated list and index. Individual open-source tool engines are MIT licensed (see their respective repositories). ToolKnit.com source code is proprietary.
Built with care by ZihangDong · toolknit.com