Developer tool
JSON Formatter
Paste JSON to beautify, minify, or validate it. Catch syntax errors quickly and copy clean output — all in your browser.
Private by design. Nothing is uploaded. Your JSON never leaves this page.
How it works
- Paste JSON into the editor.
- Beautify, minify, or validate.
- Copy the result.
Frequently asked questions
Is this JSON formatter free?
Yes. Unlimited use with no account.
Does it validate JSON?
Yes. Validate reports whether the text is valid JSON and shows parse errors.
Do you store my JSON?
No. Closing the tab clears it.
Can I minify JSON for APIs?
Yes. Use Minify to remove whitespace for compact payloads.