Format, validate, minify, and sort JSON instantly. Paste your JSON and get a clean, readable result with error detection. 100% client-side — your data never leaves your browser.
How to use this tool
Paste your JSON in the Input box. Click Format to beautify it with proper indentation.
Click Validate to check if your JSON is valid. Errors are highlighted with the exact location.
Click Minify to compress JSON by removing all whitespace — perfect for API payloads.
Toggle Sort Keys A→Z to alphabetically sort all object keys for consistent output.
This JSON formatter is useful for developers debugging API responses and making them readable, backend engineers validating JSON configuration files, frontend developers inspecting data structures, QA engineers comparing JSON payloads, data analysts cleaning up exported JSON data, and anyone who needs to quickly format, validate, or minify JSON without installing software. All processing happens 100% in your browser — your JSON data is never sent to any server.