JSON Formatter

Format, validate & minify JSON instantly

JSON Editor

Paste your JSON below — format, minify, or validate

Characters: 0
Fast
Accurate
Free
All Devices
Secure

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JSON Formatter — Format, Validate & Minify JSON Online Free

Our JSON Formatter helps developers, testers, and data analysts format, validate, and minify JSON data quickly. Whether you're debugging an API response, preparing data for production, or just need to make JSON readable — this tool has you covered. All processing is done locally in your browser. Your data never leaves your device.

How to Use

  1. Paste your JSON into the text area above
  2. Click Format JSON for pretty-printed output with proper indentation
  3. Click Minify JSON to compress it for production
  4. Use Copy to copy the result to your clipboard

Frequently Asked Questions

Is the JSON formatter free?

Yes, completely free. No signup, no credit card, no hidden fees.

Is my JSON data secure?

Absolutely. All processing happens locally in your browser. Your JSON is never uploaded to any server.

What is the difference between format and minify?

Format adds indentation and line breaks for readability. Minify removes all whitespace to reduce file size for production.