YAML to JSON
Paste YAML and get JSON back. When the YAML is malformed you get the line and column rather than a stack trace - usually it is tabs where spaces were expected.
Indent
YAML
Output
Output appears here as you type.
Runs entirely in your browser. Nothing you paste here is uploaded or stored.
Questions
Is my data uploaded anywhere?
No. The conversion is a pure function running in your browser tab. Nothing is transmitted, which is what makes it safe for production exports.
Why does my YAML fail to parse?
The usual cause is a literal tab character. YAML forbids tabs for indentation, and most editors will happily insert one. Mixed indentation levels inside the same block are the other common cause.