Complete Guide to JSON Formatting
Learn how to format, validate, and work with JSON data effectively.
JSON (JavaScript Object Notation) is a lightweight data interchange format that has become the standard for web APIs and configuration files.
What is JSON?
JSON is a text-based format that is easy for humans to read and write, and easy for machines to parse and generate. It is based on a subset of JavaScript but is language-independent.
Basic JSON Structure
JSON supports the following data types:
- Objects: Collections of key-value pairs enclosed in curly braces {}
- Arrays: Ordered lists of values enclosed in square brackets []
- Strings: Text enclosed in double quotes
- Numbers: Integer or floating-point
- Booleans: true or false
- Null: Represents empty or non-existent value
Formatting Best Practices
1. Use consistent indentation: 2 or 4 spaces are common standards
2. Keep keys descriptive: Use camelCase or snake_case consistently
3. Validate before use: Always validate JSON to catch syntax errors
4. Minify for production: Remove whitespace to reduce file size
Common JSON Errors
- Missing commas between elements
- Trailing commas (not allowed in JSON)
- Using single quotes instead of double quotes
- Unescaped special characters in strings
Use our JSON Formatter tool to easily format, validate, and minify your JSON data.