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YAML to CSV
A YAML list of mappings → CSV. Header = union of keys in first-seen order; a missing key is an empty cell; nested values are kept as JSON text. Same YAML subset as YAML to JSON.
A little guidance. A better result.
How to use YAML to CSV
A YAML list of mappings → CSV; header from the union of keys, missing keys empty.
Prepare your input
Paste a YAML list of mappings.
Use the workspace
Inspect the combined keys used as headers.
Check your result
Check missing values and row order in the CSV.
Know the limits
The supported YAML subset excludes anchors, aliases and tags. CSV cannot retain all nested structure.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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