JSON (JavaScript Object Notation) is the most popular data interchange format on the web. Proper formatting is essential for debugging, readability, and maintenance.
Why Format JSON?
Minified JSON is compact but unreadable. Formatted (pretty-printed) JSON uses indentation and line breaks to reveal the data structure clearly.
Best Practices
1. Use Consistent Indentation
Choose either 2 spaces or 4 spaces and stick with it throughout your project.2. Validate Before Sharing
Always validate your JSON before sending it to teammates or APIs. Common issues include:3. Use Meaningful Keys
// Bad
{"n": "John", "a": 30}// Good
{"name": "John", "age": 30}
4. Keep It Flat When Possible
Deep nesting makes JSON harder to read and parse. Consider flattening when nesting exceeds 3-4 levels.JSON vs YAML vs TOML
Try It Yourself
Format, beautify, or validate your JSON with our free JSON Formatter.