JSON ↔ YAML

Round-trip between JSON and YAML — paste either, see the other. Browser-only via js-yaml.

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YAML

Result

{
  "name": "cft-tools",
  "version": 1,
  "features": [
    "browser-only",
    "typed"
  ]
}

How to use

1
Pick a direction
YAML → JSON or JSON → YAML.
2
Paste input
Auto-detect picks based on whether the input starts with { or [.
3
Copy result
JSON pretty-printed at 2 spaces; YAML emitted with sensible defaults.

Are YAML anchors and tags supported?

Yes — js-yaml handles standard YAML 1.2 anchors, aliases, and explicit tags. They will be expanded when converting to JSON.