Use the documented input boundary
CSV Canonicalizer is a browser-local utility for its documented pasted-text CSV subset.
For supported input, it produces predictable comma-delimited output. It refuses malformed or unsupported input.
Accepted and refused input
Use the product and documentation pages for the exact supported boundary and examples. They describe the accepted pasted-text subset and the kinds of input the utility refuses.
Open CSV Canonicalizer or read the CSV Canonicalizer documentation.