JSON Formatter & Validator
Format, validate, and beautify your JSON data. Pretty print for readability or minify for production. Instant syntax validation.
How to Format JSON
- Paste your JSON data
- Click Format or Minify
- Review validation results
- Copy the formatted JSON
About JSON Formatting
JSON (JavaScript Object Notation) is the standard data format for APIs and configuration files. Our formatter helps you work with JSON by making it readable or compact as needed.
Pretty printing adds proper indentation and line breaks, making complex JSON structures easy to read and understand. You can customize the indentation level (2 spaces, 4 spaces, or tabs) based on your preference.
Minification removes all unnecessary whitespace, reducing file size for production use. This is essential for optimizing API payloads and configuration files in deployed applications.
The validator instantly checks your JSON syntax, highlighting errors with line numbers and descriptions. Common issues like missing commas, unclosed brackets, and invalid characters are detected immediately.
The optional key sorting feature alphabetizes object keys, making it easier to compare different JSON files or find specific properties in large objects.