Convert YAML array to CSV format. Part of the DevTools Surf developer suite. Browse more tools in the Converters collection.
Use Cases
Data analysts converting YAML datasets into CSV for spreadsheet analysis
DevOps engineers exporting YAML inventory data to CSV for reporting
Product managers transforming YAML feature flags into CSV for tracking
QA engineers converting YAML test configurations to CSV for test matrices
Tips
Flatten nested YAML mappings before conversion for cleaner output
Verify that YAML sequences convert to individual CSV rows
Check that YAML's special values like ~ and null map correctly
Fun Facts
YAML sequences (arrays) map naturally to CSV rows, but YAML mappings (objects) require key-to-column flattening.
The 'Norway problem' in YAML can cause country code 'NO' to become 'false' in CSV output if not properly quoted.
YAML's support for multiple data types (dates, booleans, numbers) requires careful handling during CSV conversion.
FAQ
What YAML shape becomes CSV?
A list (top-level sequence) of maps with the same keys. Each map is a row; the keys are the columns. Any other shape doesn't have a natural CSV equivalent.
How are nested maps handled?
Flattened with dot-notation headers by default (`user.name`). Toggle 'serialize nested' to keep them as JSON-encoded cell values.
What if keys differ between records?
Columns are the union of all keys. Records missing a column get an empty cell. The output is rectangular regardless of input variability.
Does it preserve type information?
No — CSV is all strings. Booleans become `true`/`false` strings; numbers lose precision if they were very large YAML integers.
