Developer tools

JSON Formatter and Validator

Format and validate JSON.

Browser

Runs in your browser.

Fast

Open, run, copy.

Result

Result appears here.

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FAQ

Questions

Does it validate invalid JSON too?

Yes. If parsing fails, the tool shows the parser error instead of formatted output.

Can I minify JSON?

This version focuses on readable formatted output, but it also shows total character counts.

Is the JSON sent to a server?

No. Parsing and formatting happen directly in the browser.