JSON Validator and Beautifier

Validate, beautify, and minify JSON data instantly. Free, fast, private.

Upload Your JSON File

Drag and drop your JSON file or click to browse. Your file is processed locally in your browser.

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About JSON Validator and Beautifier

Our JSON Validator and Beautifier helps you quickly check if your JSON data is valid and format it for better readability. Simply paste your JSON and get instant feedback.

Features

  • Instant JSON validation with detailed error messages
  • Pretty print JSON with customizable indentation
  • Minify JSON to reduce file size
  • Copy formatted output to clipboard
  • 100% client-side processing - your data never leaves your browser
  • Download formatted or minified JSON files

How to Use

  1. Paste your JSON data into the text area
  2. Instant validation shows if JSON is valid or has errors
  3. Choose "Pretty Print" for readable format or "Minified" for compact output
  4. Copy the result or download as a file