What is the difference between formatting and minifying JSON?

Formatting (pretty-printing) adds indentation and line breaks to make JSON human-readable. Minifying removes all unnecessary whitespace to reduce file size, which is useful for production APIs and network transfer.

JSON Formatter / Validator

Paste JSON to pretty-print, minify, or validate it. Syntax errors are reported with their position.

JSON Input

Frequently Asked Questions

What is JSON?

JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format. It is language-independent and easy for both humans and machines to read and write. JSON is the most common format for APIs and configuration files.

How do I validate JSON?

Paste your JSON into the editor and click Validate. The tool will parse it and report any syntax errors with the position of the problem. Valid JSON requires properly matched braces, brackets, quotes, and correct comma usage.

Formatting vs. minifying?

Formatting (pretty-printing) adds indentation and line breaks for readability. Minifying removes all unnecessary whitespace to reduce file size — ideal for production APIs and network transfer.