About DevTools
DevTools is a free collection of 71+ browser-based developer utilities built to help developers work faster without compromising their data. Every single tool runs entirely in your browser — no server, no account, no nonsense.
71
Tools
9
Categories
0
Servers
What Makes This Different
100% Private by Default
Every tool runs entirely in your browser. Nothing you type, paste, or upload ever leaves your device or reaches a server. No logs, no uploads, ever.
Instant Results
All processing happens client-side in real time. There are no network round-trips, no waiting for a response, and no rate limits.
Always Free
No account, no subscription, no paywalls. Every tool is free to use as many times as you like.
No Tracking of Usage
We don't track what you paste into tools. Analytics (if enabled) only measure page views and are fully anonymised.
Developer-First Design
Keyboard-friendly, dark-mode supported, fast-loading, and built to handle real-world inputs like minified JSON, multi-line code, and large datasets.
Static & Offline-Capable
The entire site is a static export with zero server-side dependencies. Once loaded, most tools work without an internet connection.
Tool Categories
Built With
Statically exported — every page is pre-rendered HTML. Tool logic is lazy-loaded per tool so the main bundle stays under 90 kB. Per-tool dependencies (sql-formatter, js-yaml, papaparse, qrcode, etc.) are code-split and only loaded when needed.
Ready to get started?
Browse all 71 tools — no signup needed.