JSON Formatter & Validator

Paste your JSON to format, validate, or minify it instantly. Everything runs locally in your browser.

Input JSON

Output

Formatted JSON will appear here...

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write, and easy for machines to parse and generate. JSON is widely used in web APIs, configuration files, and data storage.

How to use this tool

Format: Pretty-prints your JSON with 2-space indentation
Minify: Removes all whitespace to create the smallest possible JSON string
Validate: Checks if your JSON is syntactically valid and shows any errors