JSON Formatter & Validator

Beautify, validate, and minify your JSON data securely in the browser.

Input JSON

Output

What is JSON Formatter?

JSON (JavaScript Object Notation) is a lightweight data-interchange format. Our JSON Formatter helps you beautify compressed, unreadable JSON code into perfectly indented, readable structures.

Features

Validate JSON syntax instantly with descriptive error messages.
Format with 2 or 4 spaces of indentation.
Minify JSON to save space.
All parsing happens completely client-side so your proprietary data never leaves your computer.