JSON Formatter & Validator
Beautify, minify, and validate your JSON data instantly.
Beautify, minify, and validate your JSON data instantly.
Paste or type your JSON data into the input textarea. Click "Beautify" to format it with clean 2-space indentation, "Minify" to compress it into a single line, or "Validate" to check whether the JSON is syntactically correct. Results appear in the output area and can be copied to your clipboard with one click.
Raw JSON from APIs, log files, or databases is often compressed into a single line, making it nearly impossible to read. Beautifying JSON with consistent indentation lets you quickly scan the structure, identify nested objects, and spot missing values. Minifying does the reverse, removing whitespace to reduce payload size for storage or transmission.
The validator parses your JSON using the browser's built-in JSON parser and reports the exact error message if something is wrong. Common issues include trailing commas, unquoted keys, single quotes instead of double quotes, and missing brackets. Fixing these problems before sending data to an API saves debugging time.
Absolutely. All processing happens locally in your browser using JavaScript. Your JSON is never uploaded to any server, making this tool safe for sensitive data including credentials, tokens, and private configuration.
This tool supports standard JSON as defined by RFC 8259. It uses the native browser JSON parser, so it follows the same rules as JavaScript's JSON.parse and JSON.stringify methods.