JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting. Minify or prettify JSON with customizable indentation.
What is JSON?
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 has become the de facto standard for data exchange on the web, used in REST APIs, configuration files, databases like MongoDB, and more. JSON supports six data types: strings, numbers, booleans, null, arrays, and objects. Properly formatted JSON improves readability and helps catch syntax errors early in your development workflow.
How to Format JSON
Paste your raw JSON data into the input panel on the left, or click "Load Sample" to try with example data.
The tool automatically validates your JSON and highlights any syntax errors with line numbers and descriptions.
Choose your preferred indentation (2 or 4 spaces) and click Format to beautify, or Minify to compress your JSON.
Copy the formatted result with one click, or use the Share button to generate a shareable URL with your data embedded.