Format & Validate JSON

Beautify messy JSON strings, debug syntax errors, or minify for production.

Why use this JSON Formatter?

Fast & Client-Side

Your JSON data never leaves your browser. Validation happens locally via JavaScript.

Error Debugging

We highlight exactly where your syntax errors are so you can fix broken APIs quickly.

Syntax Highlighting

Color-coded keys, strings, numbers, and booleans for maximum readability.