Developer Tools

JSON Formatter & Beautifier

Format, beautify and validate JSON data with syntax highlighting.

Part of Yoopla's 445+ free browser tools.

How to Use JSON Formatter

  1. 1

    Paste your JSON data into the input area.

  2. 2

    Click "Format JSON" to beautify with proper indentation.

  3. 3

    The tool automatically validates and highlights errors.

  4. 4

    Copy the formatted output or download it.

Frequently Asked Questions

What is JSON formatting?

JSON formatting adds proper indentation and line breaks, making JSON data human-readable.

Does it validate JSON?

Yes — the formatter highlights syntax errors and shows descriptive messages.

Can I set the indentation level?

Yes, you can choose between 2-space, 4-space, or tab indentation for the formatted output.

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JSON Formatter & Beautifier | Yoopla