Paste your tab-separated data into a browser-based TSV to CSV converter and it swaps the tabs for commas, quoting any field that contains a comma, quote or line break so the CSV stays valid. The conversion runs on your device, so a data export is never uploaded, and the result imports cleanly into spreadsheets and databases.
TSV and CSV are the same idea, a plain-text table, with a different separator: TSV uses tab characters between fields while CSV uses commas. Converting is not just a find-and-replace, because a field that itself contains a comma has to be wrapped in quotes so it is not mistaken for a column break. A real converter applies those CSV quoting rules while it swaps the delimiter, so nothing gets misaligned.
You often get TSV when copying a block straight out of a spreadsheet or from a tool that exports tab-separated text, but the system you are feeding wants CSV specifically. Rather than fiddling with the delimiter by hand and risking broken rows, a converter does it reliably. Since these tables can hold real records, running the conversion in your browser keeps the data off any server.
The converter wraps that field in quotes so the comma inside it is not treated as a column separator.
Often from copying cells out of a spreadsheet or an export that uses tabs between fields.
No. The conversion runs entirely in your browser.