JSON Formatter & Validator
Format, validate, and minify JSON data with customizable indentation.
Input JSON
Output
Formatted output will appear here...
About JSON
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format. It is language-independent and widely used for APIs, configuration files, and data storage.
JSON Data Types
- String — text wrapped in double quotes
- Number — integer or floating-point
- Boolean — true or false
- Null — empty value
- Array — ordered list of values in square brackets
- Object — collection of key-value pairs in curly braces
Common JSON Errors
- Trailing commas after the last item in an array or object
- Using single quotes instead of double quotes
- Unquoted property names
- Comments (JSON does not support comments)