YAML to JSON Converter
Convert between YAML and JSON formats instantly. Bidirectional conversion with syntax validation and formatting options. 100% free and private.
Input (YAML)
Output (JSON)
Output will appear here...
Bidirectional Conversion
Convert YAML to JSON or JSON to YAML with a single click.
Syntax Validation
Validates both YAML and JSON syntax with helpful error messages.
100% Private
All conversion happens in your browser. Your data never leaves your device.
Common Use Cases
Configuration Files
Convert between YAML and JSON configuration files for different applications and frameworks (Docker, Kubernetes, CI/CD pipelines).
API Development
Transform API specifications and documentation between YAML (OpenAPI) and JSON formats.
Data Exchange
Convert data structures for different systems that require specific formats.
Testing & Development
Quickly convert test data and mock responses between YAML and JSON for development purposes.
Frequently Asked Questions
What is YAML?
YAML (YAML Ain't Markup Language) is a human-friendly data serialization format. It's commonly used for configuration files and data exchange. YAML is more readable than JSON and supports features like comments and multi-line strings.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write and easy for machines to parse and generate. JSON is widely used in web APIs and configuration files.
When should I use YAML vs JSON?
Use YAML for human-edited configuration files where readability and comments are important (Docker, Kubernetes configs). Use JSON for data exchange, APIs, and machine-generated files where strict syntax and parsing speed are priorities.
Does the tool preserve data types?
Yes! The converter preserves data types including strings, numbers, booleans, arrays, and objects during conversion between YAML and JSON.
Can I convert complex nested structures?
Absolutely. The tool handles deeply nested objects and arrays, converting them accurately between YAML and JSON formats.
Is my data private and secure?
Yes. All conversion happens entirely in your browser using client-side JavaScript. Your data is never sent to any server, ensuring complete privacy and security.