JSON Formatter & Validator
Paste your JSON to instantly format, validate, and highlight it. Detects syntax errors and pretty-prints in one click.
Frequently Asked Questions
What does a JSON formatter do?
A JSON formatter takes raw, minified, or incorrectly indented JSON and reformats it with proper indentation and line breaks to make it human-readable.
Does the JSON formatter validate my JSON?
Yes. If your JSON has syntax errors — missing commas, unclosed brackets, incorrect quotes — the formatter highlights the error and shows exactly where it is.
Is my JSON data stored or shared?
No. All processing happens entirely in your browser. Your JSON data never leaves your device.
Can I format minified JSON?
Yes. Paste any minified JSON string and the formatter instantly expands it into a readable, indented structure.
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