WebCalcSys WebCalcSys
Back to Dev Tools

JSON Formatter & Validator

Format, minify, and validate your JSON data instantly. Perfect for developers working with APIs, configuration files, and data interchange.

JSON Formatter & Validator

Format, minify, and validate your JSON

About JSON

JSON (JavaScript Object Notation) is a lightweight data-interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's the most common format for REST APIs, configuration files, and data storage.

Format

Pretty-print with proper indentation

Minify

Remove whitespace to reduce size

Validate

Check syntax for errors

Free online JSON Formatter and Validator. Beautify, prettify, and validate JSON data instantly. Perfect for developers, API testers, and data analysts. Supports formatting with 2-space indentation, minification for production use, and syntax validation with detailed error messages.