JSON FORMATTER
JSON Formatter & Validator
Beautify, minify, and validate JSON instantly. Runs entirely in your browser.
Beautify, minify, and validate JSON instantly. Runs entirely in your browser.
JSON (JavaScript Object Notation) is a lightweight data interchange format widely used in APIs, config files, and data storage. Raw JSON is often minified and hard to read. This JSON formatter helps you beautify, validate, and minify JSON data instantly, making complex data structures easy to understand.
Debugging API responses that come back minified. Validating JSON config files like package.json or tsconfig.json. Analyzing raw JSON data from crawlers or data exports. Teaching JSON structure to new developers.
Paste your JSON data into the input area and click Format to see the beautified result. If there's a syntax error, the tool will show you exactly where the problem is. To minify, click the Minify button to get the smallest possible JSON string. You can also choose your preferred indentation style from the options menu.
JSON formatting makes minified or compressed JSON data human-readable by adding proper indentation and line breaks. This helps developers debug APIs, understand data structures, and review config files more easily.
Common JSON syntax errors include: trailing commas after the last item in an object or array, unclosed quotes or brackets, using single quotes instead of double quotes, and comments (JSON doesn't support comments natively).
Both are valid and purely a matter of style preference. 2-space indentation is more compact and popular in JavaScript communities. 4-space indentation is more readable for deeply nested structures and common in Python and Java teams.
No. JSON is a stricter subset of JavaScript object notation. JSON requires double quotes around keys and strings, doesn't support functions or undefined, and doesn't allow trailing commas. JavaScript objects are more flexible.