YAML to JSON Converter
Convert YAML to JSON online instantly. Supports nested maps, lists, scalars and comments. Free, no upload.
Frequently asked questions
- Which YAML features are supported?
- Nested mappings, block lists, scalars, quoted strings, booleans, null, integers, decimals, comments and simple inline arrays like [a, b, c].
- Does my YAML leave the browser?
- No. Conversion happens locally with JavaScript, so private config files stay on your device.
- Does it support anchors, multi-line strings or flow maps?
- No, this is a lightweight parser for everyday config files. Complex YAML with anchors, block scalars or multi-document streams is not supported.
- Is the output valid JSON?
- Yes, the result is produced with JSON.stringify, so it can be pasted straight into any JSON consumer.
This tool runs entirely in your browser. No data is uploaded anywhere.