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Paste JSON

Formatted JSON

Free Online JSON Formatter and Validator

Format, validate, minify, copy, or download JSON online. Find syntax errors quickly and turn compact JSON into readable, indented data.

How to use this tool

Use this JSON formatter when an API response, configuration file, or data object is difficult to read. It checks the JSON syntax before producing clean, consistently indented output.

  1. 1

    Paste the JSON

    Add a JSON object or array to the input editor. The sample can be replaced with your own data.

  2. 2

    Choose the output

    Select Format for readable indentation or Minify when you need compact JSON on one line.

  3. 3

    Check validation

    Run the tool. Valid JSON appears in the result panel; invalid JSON shows an error that helps you locate the problem.

  4. 4

    Use the result

    Copy the processed JSON, download it as a file, or reset the workspace and start again.

JSON Formatter FAQ

What is a JSON Formatter?
A JSON Formatter is a tool that helps you format, beautify, and validate JSON data to make it easy to read and error-free.
What is the difference between Beautify and Minify JSON?
Beautify formats JSON with proper indentation and spacing for readability, while Minify removes all unnecessary spaces to reduce file size.
How does this tool handle invalid JSON?
If your JSON is invalid, the tool highlights errors and shows messages to help you identify and fix the issue quickly.
Is my JSON data secure?
Yes, all processing is done in your browser, and your data is not stored or sent to any server.
Can I upload a JSON file instead of pasting text?
Yes, you can upload a .json file, and the tool will automatically format and validate its content.