YAML to JSON Converter
Convert YAML to JSON online for free. Paste config and get clean, pretty-printed JSON — handles nested maps and lists, fully in your browser.
Runs in your browserNothing uploadedFree · no signup
Handles mappings, lists, nested blocks, inline arrays/objects, quoted strings, numbers and booleans. Anchors, tags and block scalars are not supported.
Frequently asked questions
- What YAML can it convert?
- Indentation-based mappings and lists, nested blocks, inline (flow) arrays and objects like [1, 2] and {a: b}, quoted strings, numbers, booleans and nulls. It covers the YAML people typically paste from config files.
- Are anchors, tags or block scalars supported?
- No. Advanced YAML features such as anchors (&, *), explicit tags (!!type) and multi-line block scalars (|, >) are not converted, and the tool reports an error rather than guessing.
- Is my YAML uploaded anywhere?
- No. Conversion runs entirely in your browser — your data never leaves your device.