YAML to JSON Converter

Convert YAML to JSON or JSON to YAML instantly. Validate and format both formats with syntax highlighting.

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How to Use This Tool

Paste YAML or JSON into the input field, select the conversion direction, and click Convert. The tool converts YAML to JSON or JSON to YAML while preserving all data types including strings, numbers, booleans, arrays, and nested objects.

Common Use Cases

  • Converting Kubernetes manifests from YAML to JSON for API calls
  • Transforming docker-compose files for documentation
  • Converting GitHub Actions workflow configs for analysis
  • Migrating config files between YAML and JSON formats

Frequently Asked Questions

What is YAML?

YAML (YAML Ain't Markup Language) is a human-friendly data serialization format. It uses indentation and minimal syntax to represent structured data, making it popular for configuration files like docker-compose.yml, GitHub Actions, and Kubernetes manifests.

When should I use YAML vs JSON?

YAML is preferred for configuration files where humans write and read the data (it supports comments and is less verbose). JSON is preferred for API payloads and data interchange where machine processing is the priority.

Can YAML represent everything JSON can?

Yes. YAML is a superset of JSON — all valid JSON is also valid YAML. YAML adds features like comments, multi-line strings, and anchors that JSON doesn't support.