uencoder

YAML Converter

Convert between YAML and JSON online. Free, private, and 100% client-side.

Local only

Recent history

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How to use

  1. Paste YAML or JSON into the input box.
  2. Choose YAML to JSON or JSON to YAML mode.
  3. Copy or download the result.

Frequently asked questions

What YAML features are supported?
Basic YAML with nested mappings, sequences, scalars (string, number, boolean, null), and quoted strings. Multi-line literals, anchors, and references are not supported.
Is my data uploaded anywhere?
No. All conversion happens locally in your browser with no server round-trip.

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