Convert OpenAPI JSON to YAML

OpenAPI specs are widely shared in both JSON and YAML formats. Many API design tools and code generators output JSON, but YAML is more readable for human review — it's shorter, doesn't require quoting strings, and supports comments that can annotate complex schema decisions.

The challenge is that converting OpenAPI JSON to YAML while preserving field order matters: openapi comes first, then info, then servers, paths, components. Alphabetically sorted output puts components before info and paths, making the spec harder to read and diff.

This tool preserves insertion order during conversion. Paste your OpenAPI 3.x or Swagger 2.0 JSON spec, click Convert, and get YAML that reads in the same order as your source — ready to commit to your repo or share with API consumers.