DevToolsKit

JSON Formatter

Free

Format, minify, and beautify JSON with syntax highlighting.

100% browser-based — data stays private
Output will appear here...
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About JSON Formatter

The JSON Formatter helps organize, validate, and compress JSON data for easier reading and sharing. Whether you're reviewing API responses or working with configuration files, it keeps your JSON clear and well-structured.

Everything runs directly in your browser, so your JSON stays on your device. Paste your data, choose Format or Minify, then copy the result or download it as a .json file.

Key Features

  • Beautify JSON with 2-space indentation
  • Minify JSON to a single line
  • Highlighting for JSON keys, strings, numbers and booleans
  • Copy formatted output to clipboard
  • Download JSON as a file
  • 100 % browser-based — your data is encrypted.

How to Use

  1. 1Paste or type your JSON into the input field.
  2. 2Click "Format" to beautify or "Minify" to compress.
  3. 3Review the highlighted output below.
  4. 4Copy or download the result.

Common Use Cases

Debugging REST API responses
Formatting package.json or tsconfig files
Preparing JSON for documentation or blog posts
Compressing JSON payloads for production

Frequently Asked Questions

Is the JSON Formatter available without payment?+

Yes. You can use the JSON Formatter without creating an account or paying any fees.

Is my JSON stored anywhere?+

No. Your JSON is processed within your browser and remains on your device during the entire session.

Can the tool handle incorrect JSON?+

The formatter only works with valid JSON. If there is a syntax error, the tool will point it out so you can correct it before formatting.

What is the difference between Format and Minify?+

Format arranges JSON into a clear, readable structure, while Minify removes unnecessary spaces and line breaks to create a compact version.

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