{ }JSON Formatter
Beautify, minify and validate JSON.
About JSON Formatter
Format, beautify, minify and validate JSON online. Paste your JSON to pretty-print it with proper indentation or minify it to save space. Errors are highlighted so you can fix invalid JSON fast. Everything runs locally in your browser.
🔒 Private by design — this tool runs entirely in your browser. Nothing you enter is uploaded to a server.
Frequently asked questions
Does it validate JSON?＋
Yes. If your JSON is invalid, the exact error is shown so you can fix it quickly.
Can it minify JSON too?＋
Yes — you can beautify (pretty-print) or minify JSON with a single click.
Is my JSON data safe?＋
Yes. It is processed locally in your browser and never uploaded.