YAML to JSON Converter
YAML → JSON — convert instantly in your browser
JSON Output
About YAML to JSON Converter
Paste any YAML and it is converted to formatted JSON as you type — no upload, no sign-up. Everything runs locally in your browser, so even sensitive configuration files never leave your machine.
Supports nested objects, arrays, multi-document YAML, and all standard YAML scalar types.
FAQ
Is my data sent anywhere? No — conversion happens entirely in your browser using the js-yaml library.
What YAML versions are supported? The converter supports YAML 1.2 and most YAML 1.1 features.
Can I choose the JSON indentation? Yes — pick 2 or 4 spaces from the indent selector.