YAML ↔ JSON

Convert between YAML and JSON formats instantly. YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files, CI/CD pipelines, Kubernetes manifests, and Docker Compose files.

This tool supports common YAML features: key-value pairs, nested objects (indentation-based), arrays (- prefix), strings, numbers, booleans, null values, comments, and block scalars (| and >). The input format is auto-detected to help you choose the right conversion direction.

All processing happens locally in your browser — your data never leaves your device.