Pretty-print or minify JSON text directly in your browser — all parsing happens locally, nothing is uploaded.
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How to Use the JSON Formatter
Paste your JSON into the input box.
Choose your indent size (2 or 4 spaces).
Click "Format (Pretty Print)" for a readable version, or "Minify" for a compact single-line version — then click "Copy to Clipboard".
Frequently Asked Questions
It parses your JSON text and re-outputs it with consistent indentation (pretty-print), or as a single compact line (minify), making it easier to read or to reduce its size.
The tool shows an error message describing what's wrong (e.g. a missing comma or unmatched bracket) instead of a formatted result, so you can locate and fix the issue.
No, all parsing and formatting happens locally in your browser — your JSON data is never uploaded anywhere.
Yes, it's completely free and requires no sign-up.