About JSON Tool

A free, privacy-first collection of JSON utilities that run entirely in your browser. No uploads, no servers, no tracking.

Our Tools

Beautify minified JSON with customizable indentation

Remove whitespace and compress JSON to minimal size

Check syntax and pinpoint errors with line/column info

Add or remove escape characters from JSON strings

Visualize JSON structure with collapsible tree

Privacy First — All processing happens in your browser. Your data never touches a server.
Free Forever — No sign-up required. No hidden fees. No premium tiers.
Fast & Lightweight — Zero dependencies for core JSON operations. Instant results.