Does CSV to YAML upload my file or text to Tool-You servers?

No. CSV to YAML runs in this browser tab. Files stay on the device. Limit note: Header plus rows become a YAML list. Stays in this tab.

Should I use CSV to JSON instead of CSV to YAML?

Use CSV to YAML when you need Turn CSV rows into a YAML list. Use CSV to JSON when you need Parse CSV into a JSON array of objects. They share a category (Convert) but not the same job.

CSV to YAML

Turn CSV rows into a YAML list.

Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab.

What CSV to YAML does

Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab.

CSV to YAML sits in the Convert group on purpose. It is not CSV to JSON (Parse CSV into a JSON array of objects.) and not JSON to YAML (Dump JSON as YAML.). Choose this page when you need Turn CSV rows into a YAML list. If you stretch CSV to YAML into a neighbor’s job, the result will look wrong even though the site chrome looks the same.

How to use CSV to YAML

Keep this tab on CSV to YAML (/csv-to-yaml). Pasting into the wrong Convert tool (for example CSV to JSON) changes the job.
Paste or type the input CSV to YAML expects. Path hint: csv to yaml. Turn CSV rows into a YAML list.
Apply the CSV to YAML action only. JSON to YAML is a different transform (Dump JSON as YAML.). Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab.
Copy the output of CSV to YAML if you need it elsewhere. Size/complexity still follows: Header plus rows become a YAML list. Stays in this tab.
If the text job is actually Parse CSV into a JSON array of objects., leave CSV to YAML and open CSV to JSON.

When not to use CSV to YAML

Skip CSV to YAML when a neighbor tool matches better — start with CSV to JSON or JSON to YAML — or when the description already warns the job will fail. In the tool’s own words: Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab.

Questions about CSV to YAML

What does CSV to YAML do that other Convert pages on this site do not?: Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab. Short version: Turn CSV rows into a YAML list.
Does CSV to YAML upload my file or text to Tool-You servers?: No. CSV to YAML runs in this browser tab. Files stay on the device. Limit note: Header plus rows become a YAML list. Stays in this tab.
Should I use CSV to JSON instead of CSV to YAML?: Use CSV to YAML when you need Turn CSV rows into a YAML list. Use CSV to JSON when you need Parse CSV into a JSON array of objects. They share a category (Convert) but not the same job.
What are the limits of CSV to YAML?: Header plus rows become a YAML list. Stays in this tab. Also: Parses the header row then dumps a YAML list of maps. Unlike CSV to JSON this is YAML. Unlike JSON to YAML this starts from CSV, not JSON. Stays in this tab.