Format, validate, and beautify JSON data instantly. Perfect for developers debugging APIs, configuration files, or any JSON data. Syntax highlighting and clear error messages included.
Using this JSON formatter is simple. Paste your JSON data into the left text area and click Format to beautify it with proper indentation and line breaks. The formatted output appears in the right panel with syntax highlighting.
If your JSON is invalid, the tool shows a clear error message describing what's wrong and where the issue is. This makes debugging JSON errors much faster than hunting through raw data.
Use Minify to compress your JSON into a single line — useful for reducing file sizes in API requests or configuration. The Copy button copies the formatted or minified output to your clipboard.
JSON (JavaScript Object Notation) is a lightweight data-interchange format that's easy for humans to read and machines to parse. It's the most common format for API responses, configuration files, and data storage in modern web applications.
JSON supports: strings (in double quotes), numbers, booleans (true/false), null, arrays (ordered lists in square brackets), and objects (key-value pairs in curly braces). Valid JSON requires double quotes around keys and strings, and no trailing commas.