YAML Tools
YAML to CSV Converter
Convert a YAML list of objects into CSV.
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What is YAML → CSV?
A YAML→CSV converter for lists of records, with the union of all keys used as headers so heterogeneous lists still convert.
How it works
The YAML parses with js-yaml, keys across rows are unioned into headers, and each row is written with RFC 4180 escaping via the shared CSV writer.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Data extraction
Flatten a YAML list into CSV rows — pick the fields to export and get a spreadsheet-ready file.
Common mistakes
Nested data doesn't flatten
Deeply nested maps need a path strategy. The converter uses dotted paths as column names and flags ambiguity.
Frequently asked questions
What input shape works best?
A list of similar objects — each object becomes a row with its keys as columns.
Does it escape CSV correctly?
Yes — delimiters, quotes, and newlines in values are properly escaped.