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JSON Formatter

Prettify, minify, and validate JSON in one click.

Frequently asked questions

Does the JSON formatter validate syntax?
Yes. If your JSON has syntax errors, the tool displays the specific error message so you can locate and fix the issue.
What does Minify do?
Minify removes all whitespace and newlines from JSON, making the output as compact as possible. This is useful for production APIs or reducing HTTP payload size.
Is there a size limit on JSON input?
There is no hard limit. The formatter runs entirely in your browser, so performance depends on your device for very large inputs.
JSON Formatter & Validator — Prettify JSON Free Online | Utilbase