Will commas inside my values break the output?

No. Any field containing the delimiter, a double quote or a line break is automatically wrapped in quotes and its internal quotes are doubled, following RFC 4180.

Can I output a semicolon or pipe instead of a comma?

Yes. Choose the output delimiter you need — comma, semicolon or pipe — and the quoting adapts to that delimiter.

Is my data uploaded anywhere?

No. Conversion happens entirely in your browser with JavaScript, so your data never leaves your device.

RFC 4180 is the common standard for CSV files. It defines how to quote fields that contain the delimiter, quotes or line breaks, which is exactly the escaping this tool applies.

Why is TSV simpler to parse than CSV?

TSV uses tabs as separators and has no quoting, so a plain split on tabs and newlines is correct. CSV needs full quote handling, which the tool adds on output.

Does it handle quotes already inside my values?

Yes. A value like she said "hi" is wrapped in quotes and the inner quotes are doubled, producing "she said ""hi""" so importers read it correctly.

Will the output open in Excel and Google Sheets?

Yes. Because the output follows RFC 4180 quoting, it imports cleanly into Excel, Google Sheets and database loaders, including fields with commas or newlines.

TSV to CSV Converter

Convert TSV to CSV in your browser

This converter turns tab-separated values (TSV) into standards-compliant CSV, adding the quoting that TSV lacks. It is for anyone exporting a tab-delimited table from a spreadsheet, database, or script and needing a clean CSV that imports without breaking on commas.

How it works

TSV has no quoting, so the tool simply splits each line on tabs and each record on newlines. On output it applies RFC 4180 escaping: any field that contains the chosen delimiter, a double quote, or a line break is wrapped in double quotes, and any double quotes inside the field are doubled. You can output with a comma, semicolon, or pipe delimiter, and the quoting adapts to whichever you pick.

quote a field if it contains: delimiter, " , newline, or carriage return
escape inner quotes by doubling them: "  →  ""

Example

This TSV (tabs shown as →):

name→role→city
Bao, Jr.→Designer→Hanoi

becomes this comma CSV — note Bao, Jr. is quoted because it contains a comma:

name,role,city
"Bao, Jr.",Designer,Hanoi

Everything runs locally in your browser — nothing is uploaded, which makes it safe for confidential spreadsheets and exports.