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HomeToolsCommonJSON Formatter

JSON Formatter

A JSON formatter online beautifies or minifies JSON for debugging APIs and config files. Invalid JSON shows a clear error in the output panel — nothing is uploaded.

JSON input

Paste raw JSON here.

Formatted JSON

Beautified or minified output.

Related tools

  • Word / Letter Counter
  • Base64 Encoder
  • HEX / RGB / HSL Converter
  • All Common →

What is a JSON formatter?

A JSON formatter online beautifies or minifies JSON for debugging APIs and config files. Invalid JSON shows a clear error in the output panel — nothing is uploaded.

Frequently asked questions

Is the JSON formatter free?
Yes. Beautify, minify, and validate JSON in your browser with no signup required.
Is my JSON uploaded to a server?
No. This JSON formatter runs in your browser. Your payload stays on your device.

How to format JSON online

  1. 1

    Paste JSON

    Drop minified or messy JSON into the input panel.

  2. 2

    Beautify or minify

    Choose format for readability or minify for compact payloads.

  3. 3

    Copy result

    Fix any validation errors, then copy the output.