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JSON Formatter

Format, prettify, and validate JSON with syntax highlighting.

Indentation
Clean Up
Output View
Input
Output
Formatted output will appear here

How to use JSON Formatter

  1. 1

    Paste JSON

    Paste your raw or minified JSON string into the input box.

  2. 2

    Choose Formatting

    Select 2 spaces, 4 spaces, tabs, or minify.

  3. 3

    Toggle Options

    Sort keys alphabetically, or remove nulls and empty strings if needed.

  4. 4

    View or Copy

    Use the Tree view to explore, or simply copy/download the formatted JSON.

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Frequently Asked Questions

Is my JSON data secure?

Yes, all processing happens entirely in your browser. No data is sent to any server.

Can I format very large JSON files?

Yes, our formatter handles large JSON structures efficiently.

How do I find syntax errors?

If your JSON is invalid, the tool immediately highlights the error line and shows a clear message.

What is minification?

Minification removes all unnecessary spaces and line breaks to reduce file size.

Can I sort JSON keys alphabetically?

Yes! Toggle 'Sort Keys' and all object keys will be arranged from A-Z recursively.