CSV to YAML

Nothing you paste here leaves your browser. There is no server to send it to — the conversion happens on your own device, and nothing is uploaded, stored or seen by anyone. Paste it, or drop a file on the page.

What this conversion costs you

A table into a tree, with the same guess about types. The rows become a sequence of mappings. As with JSON, every CSV value is a string until something decides otherwise, and the page says how many it changed.

How it works, and why nothing is uploaded

CSV is read by a parser written for this site — a few dozen lines, taking the quoting seriously, because the three-line version everybody writes is wrong for any file with a comma inside a value. The YAML is written by js-yaml.

Everything happens in the page you are looking at. There is nothing to upload, no queue, no size limit but your own memory, and nothing that could be read by anybody — because it is never sent.

Where to go next

• YAML to CSV — the same conversion the other way
• CSV to JSON — the shape everything speaks
• CSV to XML — the shape older systems expect

What this does not do

It converts one document at a time and does not validate against a schema, transform with XSLT, or query with JSONPath. It will tell you when your input does not parse, and where, rather than producing something that looks converted.

Nothing is uploaded, so it cannot work on a file that is not on the device you are using, and it does not remember what you converted a moment ago. Close the tab and it is gone.