No Strings Tools

A collection of 130+ simple, offline-first web tools without bloat, tracking, or friction. No strings attached.

Live at nostrings.tools.

Philosophy

"No strings attached" means:

• No fluff — Every element has a purpose
• No friction — Works offline, no login required, instant
• No complexity — Code is readable, no build step
• No tracking — Zero analytics, ads, or data collection
• Opinionated — Strong defaults, one happy path per app

See CLAUDE.md for full guidelines.

Repository Structure

no-strings-tools/
├── frontend/                  # All 190+ apps (deploy this)
│   ├── index.html             # Dashboard & search (generated)
│   ├── apps.json              # App manifest
│   ├── index.template.html    # Dashboard template
│   ├── sitemap.xml            # Sitemap (generated)
│   ├── [190+ app folders]/    # Each app
│   └── README.md
│
├── deploy.sh                  # Deploy frontend to server
├── justfile                   # Alternative (requires `just` CLI)
├── CLAUDE.md                  # App development guidelines
└── README.md                  # This file

There is no backend. Every app is pure HTML + JS; data lives in localStorage.

Quick Start

# Open apps offline
open frontend/index.html

# Or start local server
cd frontend
python3 -m http.server 8000
# Visit http://localhost:8000

What You Get

All Apps Work Offline

• No account required
• No internet needed
• Data in localStorage
• Open as file:///

Example Apps

Utilities:

• Timezone converter
• Unit converter
• JSON formatter
• Base64 encoder/decoder
• QR code generator

Productivity:

• Shopping list
• Notes with markdown
• Recipe scaler
• Bill splitter
• Pomodoro timer

Reference:

• Periodic table
• Planets
• Physics constants
• Phonetic alphabet
• Knot guide

Sensors (Device APIs):

• Compass
• Spirit level
• Pedometer
• Light detector
• Seismometer

Audio/Video:

• Text-to-speech
• Speech-to-text
• Metronome
• Noise generator
• Speaking clock

Developer Tools:

• Regex tester
• Cron explainer
• JWT decoder
• Resistor decoder
• Capacitor decoder

P2P Networking:

• Chat & file sharing (WebRTC)

...and 100+ more.

Development

Add a New App

1. Create folder: frontend/new-app/
2. Write index.html (semantic HTML + W3.CSS)
3. Write app.js (vanilla JS, optional)
4. Add an entry to frontend/apps.json
5. Run python3 scripts/generate.py to regenerate the dashboard and sitemap
6. Test offline

Deployment

Every push to main deploys frontend/ to GitHub Pages automatically (.github/workflows/deploy-pages.yml). deploy.sh and just deploy regenerate the dashboard and sitemap from frontend/apps.json before uploading. Manual alternatives:

python3 scripts/generate.py  # Regenerate dashboard + sitemap
./deploy.sh                  # To your server
# OR
wrangler pages deploy frontend  # To Cloudflare Pages

Performance

• Page load: <1 second
• Offline: 100% functional
• File size: ~50KB per app (average)
• No build: Apps are plain HTML+JS; only the dashboard/sitemap is generated
• ES2020+: Modern browsers only

Privacy & Security

• Zero tracking — No analytics, no ads
• Offline-first — Data stays on your device
• No accounts — Nothing to log into, nothing stored server-side
• Open source — Code is auditable
• HTTPS — Encrypted in transit

Browser Support

• Chrome/Edge (latest 2 versions)
• Firefox (latest 2 versions)
• Safari (latest 2 versions)
• No IE11, no polyfills

License

MIT - Use freely, modify, fork, deploy anywhere.

Questions?

• See CLAUDE.md for app guidelines
• See frontend/README.md for app dev

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Built with simplicity, speed, and pragmatism.