JSON Formatter
Format, validate, and beautify JSON data. Runs entirely in your browser.
How to Use
Paste or type your JSON into the input field on the left. The tool validates your JSON in real time and shows any syntax errors with line and column numbers.
- Format — Pretty-prints your JSON with the selected indentation (2 or 4 spaces).
- Minify — Compresses your JSON to a single line by removing all whitespace.
- Copy — Copies the formatted output to your clipboard.
- Clear — Resets both input and output fields.
All processing happens client-side in your browser. Your data never leaves your machine.