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JSON Formatter

Format, validate, and minify JSON instantly

How to Use JSON Formatter

  1. 1

    Paste your JSON into the input

  2. 2

    Choose Format or Minify mode

  3. 3

    Click process to validate and format

  4. 4

    Copy formatted output

Frequently Asked Questions

What is JSON minification?

Minification removes all whitespace and newlines to reduce file size — useful for APIs and web performance.

Does it support JSON5 or comments?

Standard JSON only. JSON5 (with comments) is not supported.

Features

  • Prettify JSON with custom indent
  • Minify JSON to reduce size
  • Real-time syntax validation
  • Show parse error details
  • JSON structure statistics (keys, objects, arrays)
  • Load sample JSON to try it

Supported Formats

Input

JSON

Output

JSON

Privacy First

All conversions happen in your browser. Nothing is uploaded to our servers. Your files remain completely private.