Free, fast, and private JSON tools — built by developers, for developers.
We believe developer tools should be free, fast, and respect your privacy. JSON Suite provides a complete set of JSON utilities that run entirely in your browser — no sign-ups, no server uploads, no tracking. Your data never leaves your machine.
JSON Suite includes a JSON formatter & validator, JSON compare & diff tool, auto-fix for broken JSON, a tree viewer, and converters for CSV, XML, and Excel. Every tool is designed to be simple, fast, and immediately useful — no learning curve required.
All JSON processing happens client-side in your browser using JavaScript. We never collect, store, or transmit any data you paste or upload — your JSON never leaves your machine. We use Google Analytics and Ahrefs for anonymous usage analytics (page views, traffic sources) to improve the site, but only after you consent via our cookie banner. No personal data or JSON content is ever sent to any server.
Have feedback, feature requests, or found a bug? Visit our Contact page to reach out. We'd love to hear from you.