paste either side · convert + validate. all local.
YAML input
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JSON output
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examples:
About this tool: validates and converts between YAML and JSON. The YAML parser is hand-rolled (no library) — it supports the common subset: scalars, lists, nested maps, multi-line strings, comments, quoted strings, booleans, nulls, numbers. Anchors/aliases, complex tags, and binary scalars are not supported. For full YAML 1.2 conformance, use js-yaml.