JSON to YAML

Use the fields above to transform, validate, or format input. Errors appear in the on-page alert when parsing fails.

JSON → YAML

Paste JSON (object or array). Output is a readable YAML-style mapping (not a full YAML 1.2 serializer).

How it works

We JSON.parse your input, then emit nested keys with two-space indentation and JSON-style quoted strings. Good for configs; validate with your real YAML parser in CI if needed.

Quick tips

  • Start with a minimal sample so errors are easier to pinpoint.
  • Apply one transform at a time and verify each intermediate result.
  • Copy output from the tool instead of manually retyping values.

Use this tool for

  • Formatting or minifying snippets before pasting into a repo or ticket.
  • Checking encodings (Base64, hex, URL) without third-party paste services.
  • One-off developer checks during debugging.

Common questions

Does JSON to YAML cover every edge case for JSON TO YAML?

Verify units, bases, and pasted text (hidden spaces or wrong line endings); then spot-check one example by hand if the answer must be exact.

Can I use JSON to YAML offline?

Different rounding or parsing rules can shift edge-case output—sanity-check with a tiny hand example when precision matters.