JSON Formatter & Validator
Format, validate, and beautify JSON data
About JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting. Minify JSON to reduce size or pretty-print for readability. Instantly detect syntax errors with helpful error messages.
Privacy First
All processing happens entirely in your browser. No data is sent to any server, and nothing is stored. Your input stays on your device.
FAQ
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate.
What's the difference between formatting and minifying JSON?
Formatting (or pretty-printing) adds indentation and line breaks for readability. Minifying removes all unnecessary whitespace to reduce file size, useful for production APIs.