The JSON Formatter instantly beautifies minified or raw JSON into a readable, indented structure with syntax highlighting. It validates JSON in real-time, pinpointing syntax errors such as missing commas, mismatched brackets, and invalid values with exact line numbers. Ideal for debugging API responses, config files, and data payloads.
How it Works
1Paste your unsorted or minified JSON code into the editor on the left.
2The tool instantly parses the input. If the JSON is valid, it formats it according to industry-standard indentation rules (2 spaces or 4 spaces depending on your choice).
3Any syntax errors will be highlighted immediately, allowing you to debug broken APIs or malformed strings effortlessly.
Frequently Asked Questions
What is a JSON formatter?
A JSON formatter takes compact or minified JSON and adds indentation and line breaks to make it human-readable. It also validates the structure against the JSON specification and reports errors with exact line numbers.
Is my JSON data safe?
Yes. The formatter runs entirely in your browser — your JSON is never sent to any server.
Can it format invalid JSON?
No — but it pinpoints the exact line and character where the error occurs so you can fix it quickly.
What is the difference between formatting and minifying JSON?
Formatting adds whitespace for readability; minifying removes all whitespace to reduce file size. Both operations preserve the data structure exactly.