How do I use the JSON formatter?

Paste your JSON into the input area, click Validate JSON to check if it's valid, then use Prettify or Minify to format or compress. Switch to Tree view for a visual hierarchy.

Is the JSON formatter free?

Yes. DevToolsHub JSON formatter is free, with no signup required.

JSON Formatter & Validator

Paste your JSON, click Validate JSON to check syntax, then prettify, minify, or view as a tree.

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Input JSON

Paste your JSON below. Use Validate to check syntax, then Prettify or Minify.

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How to use

Paste your JSON into the input area
Click Validate JSON to check if it's valid (or edit and re-validate)
Click Prettify or Minify to format or compress
Switch to Tree view for a visual hierarchy
Use Share URL or Copy to save or share