JSON to YAML Converter

Convert JSON to YAML and YAML to JSON instantly with our free online converter. Supports validation, formatting, and syntax highlighting. No registration required.

About JSON & YAML Conversion

JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language) are both popular data serialization formats. JSON is more compact and widely supported, while YAML is more human-readable and supports comments.

Key Differences

  • Readability: YAML uses indentation and is more human-readable
  • Size: JSON is typically more compact due to less whitespace
  • Comments: YAML supports comments, JSON does not
  • Data Types: YAML has more built-in data types than JSON
  • Parsing: JSON parsing is generally faster and more widely supported

Common Use Cases

  • Configuration Files: YAML for readability, JSON for APIs
  • Data Exchange: Converting between different system formats
  • Documentation: Making data structures more readable
  • CI/CD Pipelines: Converting between different tool formats
  • API Development: Testing and documentation purposes

Key Features

  • Bidirectional: Convert JSON to YAML and YAML to JSON
  • Validation: Automatic syntax validation for both formats
  • Formatting: Proper indentation and structure preservation
  • Statistics: Compare file sizes and structure complexity
  • Error Handling: Clear error messages for invalid syntax

Format Guidelines

  • JSON: Use double quotes, proper comma placement, no trailing commas
  • YAML: Consistent indentation (spaces, not tabs), proper list syntax
  • Data Types: Be aware of type conversion differences between formats
  • Special Characters: Some YAML characters may need quoting in JSON
Privacy Notice

All conversion is performed locally in your browser. Your data is never sent to our servers, ensuring complete privacy and security.

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