YAML→JSON変換

What is the difference between YAML and JSON?

Both represent structured data. YAML uses indentation and is more human-readable; JSON uses braces/brackets and is more compact for machines. YAML is a superset of JSON — all valid JSON is valid YAML.

When should I use YAML over JSON?

Use YAML for config files (Docker, Kubernetes, GitHub Actions) because it supports comments and is easier to read. Use JSON for APIs and data exchange because parsers are faster and more universally available.

Why does YAML conversion sometimes fail?

YAML is whitespace-sensitive. Inconsistent indentation, tabs instead of spaces, or invalid anchors will cause parse errors. The converter shows line-specific error messages to help you fix them.