JSON Formatter & Validator

Format, validate, and beautify your JSON data instantly. This tool helps you identify syntax errors, properly indent JSON, and make it human-readable.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used in web APIs and configuration files.

Common JSON Use Cases

  • API responses: Most modern web APIs return data in JSON format
  • Configuration files: Package.json, tsconfig.json, and many other config files
  • Data storage: NoSQL databases like MongoDB use JSON-like documents
  • Data exchange: Transferring data between server and client

JSON Formatting Tips

  • Validate before use: Always validate JSON to catch syntax errors
  • Use proper indentation: Makes JSON more readable and easier to debug
  • Minify for production: Reduce file size by removing whitespace
  • Quote keys: All property names must be in double quotes
  • No trailing commas: JSON doesn't allow trailing commas