YAML to JSON Converter

Convert between YAML and JSON formats instantly. Perfect for configuration files, CI/CD pipelines, and data serialization.

How to Use YAML/JSON Converter

Toggle Mode

Choose between "YAML to JSON" or "JSON to YAML" conversion modes using the toggle buttons. The interface adapts to show appropriate placeholders and labels.

Paste & Convert

Paste your YAML or JSON data into the input field and click "Convert". The tool validates syntax and shows errors if the format is invalid.

Copy Result

The converted data appears in the output field with proper formatting. Copy it for use in configuration files, APIs, or applications.

YAML vs JSON: Key Differences

YAML (YAML Ain't Markup Language) and JSON (JavaScript Object Notation) are both data serialization formats, but they serve different purposes and have distinct characteristics.

YAML Advantages

  • Human-readable and easy to edit
  • Supports comments with # symbol
  • More concise for complex nested data
  • Popular for configuration files

JSON Advantages

  • Faster parsing and smaller file size
  • Universal support across languages
  • Standard format for web APIs
  • Built-in JavaScript support

Frequently Asked Questions

When should I use YAML vs JSON?

Use YAML for configuration files, documentation, and when human readability is important. Use JSON for APIs, data exchange between systems, and when performance is critical. YAML is great for DevOps configs, while JSON excels in web applications.

Why convert between YAML and JSON?

Converting helps when working with different tools or systems that prefer one format over another. For example, you might write readable YAML configs but need JSON for APIs, or convert JSON API responses to YAML for documentation.

Does this converter handle complex YAML features?

Our converter handles basic YAML structures including key-value pairs, strings, numbers, and booleans. For complex features like anchors, aliases, or multi-line strings, consider using specialized YAML processors.

Are there any limitations to be aware of?

YAML supports comments and certain data types that JSON doesn't. When converting YAML to JSON, comments are lost and some complex YAML structures may not translate perfectly. Always validate the output for your specific use case.

Is my data secure during conversion?

Yes! All conversion happens locally in your browser. No data is sent to external servers, ensuring your configuration files, API responses, or sensitive data remains completely private.

Common use cases for YAML/JSON conversion

Popular conversion scenarios include:

  • Docker Compose files (YAML) to API configs (JSON)
  • Kubernetes manifests (YAML) for programmatic processing
  • API documentation from JSON schemas to readable YAML
  • Configuration management between different tools
  • CI/CD pipeline configs across different platforms
  • Database migration scripts and data fixtures