Format, beautify, and validate JSON instantly.
Use this free JSON formatter to beautify, validate, and minify JSON data instantly. Paste your JSON, format it for readability, or minify it for compact storage.
Great for developers, marketers, API testing, configuration files, webhooks, data cleanup, and debugging JSON responses.
Quick answers about using this free online tool.
It parses JSON and rewrites it with indentation so objects, arrays, keys, and values are easier to read.
Yes. If the input cannot be parsed as JSON, the tool shows an error message so you can find the problem.
Yes. The formatter page also supports compacting valid JSON into a smaller one-line version when available.
The formatting runs in your browser, but you should still avoid pasting highly sensitive production secrets into any web tool.