⚡ We respect your privacy! We do not store or capture any data you use on this site. All JSON formatting, comparison, and other operations are performed locally in your browser. Reloading the page will clear all data.
devtool

JSON Formatter & Validator Online

Format and minify JSON instantly. No data leaves your browser.

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About JSON Formatter

What is a JSON Formatter?

A JSON formatter is an online tool used to convert raw or minified JSON into a clean, readable, and well-structured format. It helps developers quickly understand, debug, and validate JSON data used in APIs, configuration files, and web applications.

Features of This JSON Formatter

  • Beautify (pretty-print) JSON
  • Minify / compress JSON
  • Instant JSON validation
  • Automatic error fixing for common issues
  • Tree view for deeply nested JSON
  • Alphabetical key sorting
  • One-click copy to clipboard
  • Runs completely in your browser

Who Should Use This Tool?

This JSON formatter is ideal for frontend and backend developers, API testers, QA engineers, students, and anyone working with JSON data. It is especially useful for debugging API responses and cleaning large JSON payloads.

Is My JSON Data Safe?

Yes. All formatting and validation happens locally in your browser. Your JSON data is never uploaded, stored, or shared with any server.

JSON Formatter FAQs

Is this JSON formatter free to use?

Yes, this tool is completely free and does not require sign-up.

Can I format large JSON files?

Yes. Since everything runs in your browser, large JSON files are handled efficiently without server limits.

Does this tool validate JSON?

Yes. Invalid JSON syntax is detected instantly and clearly reported.