JSON Formatter & Validator

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. It is based on key-value pairs and ordered lists.

JSON formatting (or beautifying) takes compact or messy JSON and re-indents it with consistent spacing and line breaks. This makes the structure easier to read and debug without changing the data itself.

Minification removes all unnecessary whitespace, line breaks, and indentation from JSON. This reduces file size for faster network transfers and is commonly used in production APIs and configuration files.

Common JSON errors include trailing commas, single quotes instead of double quotes, unquoted keys, and missing brackets. This tool highlights the error position so you can quickly locate and fix the issue.

Two spaces is the most common convention in JavaScript and web development. Four spaces is popular in Python ecosystems. Tabs are preferred by some developers for accessibility. Choose what matches your project's style guide.