JSON Formatter & Validator

Paste your JSON to format, validate, and beautify it. Minify for production or pretty-print for readability.

Format and Validate JSON Online

Beautify, minify, and validate JSON data with our free online formatter. Paste your JSON and instantly see it formatted with proper indentation and syntax highlighting. Identify errors quickly with clear error messages that point to the exact location of syntax issues.

Working with JSON is a daily task for web developers, API engineers, and data analysts. Unformatted JSON from API responses or log files is nearly impossible to read. Our formatter transforms messy JSON into clean, readable code with proper indentation and color-coded syntax.

Validate and Debug

Catch JSON syntax errors before they cause bugs in your application. Our validator checks for missing brackets, extra commas, unquoted keys, and other common mistakes. Copy the formatted output or minify it for production use with one click.