Copy and paste your JSON data into the input field, or click "Sample" to try with example data.
Click Format to beautify, Minify to compress, or Validate to check if your JSON is valid.
Copy the result to clipboard or download as a .json file for use in your projects.
Transform messy JSON into readable, indented format
Remove whitespace to reduce file size
Check for syntax errors with clear error messages
Choose 1, 2, or 4 spaces for indentation
Save formatted JSON directly to your device
Easy on your eyes with automatic theme support
Debug API responses, format configuration files, and validate JSON data structures. Essential for working with REST APIs, configuration files, and data storage.
Make sense of complex JSON datasets by formatting them into readable structures. Quickly identify data patterns and validate data integrity.
All processing happens in your browser. Your JSON data is never sent to any server, ensuring complete privacy and security.
Use all features instantly without registration. No accounts, no subscriptions, no limitations—just paste and format.
JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data. It's easy for humans to read and write, and easy for machines to parse and generate.
Yes! All JSON processing happens entirely in your browser. Your data never leaves your device and is never sent to our servers.
Format adds indentation and line breaks to make JSON readable. Minify removes all unnecessary whitespace to make the smallest possible file size.
Yes! Our JSON Formatter is fully responsive and works great on phones, tablets, and desktop computers.