JSON Formatter & Validator

Format, beautify, minify, and validate JSON data instantly. All processing happens locally in your browser.

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What Is a JSON Formatter?

A JSON formatter (also called a JSON beautifier or pretty printer) takes raw, compact JSON data and reformats it with proper indentation and line breaks — making it human-readable. This is essential for debugging API responses, reviewing configuration files, and sharing data with teammates.

JSON (JavaScript Object Notation) is the most widely used data interchange format on the web. Machine-generated JSON is usually minified (all on one line), which is efficient for transmission but impossible to read without a formatter.

How to Use This JSON Formatter

  1. Paste your JSON string into the Input JSON field (or click Load Sample)
  2. Click Format to pretty-print with indentation
  3. Or click Minify to compress to a single line
  4. Click Validate to check if the JSON is syntactically correct
  5. Use the Copy button to copy the result to your clipboard

After formatting your JSON, you can measure its size with our word counter, or generate matching SEO meta tags for the page where you'll use it.

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Frequently Asked Questions

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