JSON Formatter & Validator

Format, validate, and beautify your JSON data instantly in your browser.

Input JSON

About JSON Formatter & Validator

JSON (JavaScript Object Notation) is a lightweight format for storing and transporting data. Our free online JSON Formatter helps you clean up messy JSON code, validate structure, and identify syntax errors instantly without uploading data to external servers.

Frequently Asked Questions

Is my JSON data safe?

Yes, all formatting and validation processes happen entirely in your browser using JavaScript. No data is sent to any server.

What is the difference between Format and Minify?

Formatting adds indentation and newlines to make code readable for humans. Minifying removes all extra whitespace to reduce file size.