JSON Formatter & Validator
Format, validate, beautify, and minify JSON data. Supports tree view.
Processed locally in your browser
Input JSON
Output
Frequently Asked Questions
What is JSON formatting?
JSON formatting (or beautifying) adds proper indentation and line breaks to minified JSON data, making it easier to read and debug.
Is my JSON data safe?
Yes. All processing happens entirely in your browser. Your JSON data never leaves your device.
What JSON errors can this tool detect?
This tool detects syntax errors like missing commas, unclosed brackets, invalid strings, and trailing commas that are not permitted in standard JSON.
What is the difference between formatting and minifying JSON?
Formatting adds whitespace and indentation for readability, while minifying removes all unnecessary whitespace to reduce file size for production use.