JSON Formatter

Format, beautify and validate JSON instantly. Works fully in your browser with no upload required.

Input JSON

Output

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data format commonly used for APIs, configuration files and data exchange.

Why use a JSON formatter?

A JSON formatter helps developers read, validate and debug JSON more easily by adding indentation and highlighting errors.

About JSON Formatter

All processing happens locally in your browser, making it fast, private and offline-friendly.

Features

• Format JSON with proper indentation
• Validate invalid JSON instantly
• Minify JSON for production use
• Copy formatted output with one click