Simple, focused utilities that run entirely in your browser — no installs, no servers, no tracking.
Prettify, minify, and validate JSON with syntax highlighting.
Convert JSON objects into TypeScript interface definitions.
Compare two JSON objects and highlight the differences.
Sort JSON object keys alphabetically (A→Z or Z→A), recursively.
Why HTML Tools
Built for speed, privacy, and simplicity.
Nothing leaves your device. Your data is processed locally — never sent to any server.
No round trips, no loading spinners. Everything runs at native browser speed, offline-capable.
Open a URL, start working. No npm, no Docker, no account — just a browser.
Each tool does one thing well. No bloat, no distractions — just the feature you need.