Is my TSV data uploaded to a server?

No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

What happens to values that contain commas?

They are quoted automatically, following the CSV standard. A real CSV writer handles quoting and escaping, so the values themselves are never altered.

TSV to CSV Converter — Free Online Tool

Convert tab-separated values to comma-separated values instantly in your browser. Free and private: your data never leaves your device.

Instant Private Zero cookies

Delimiter

Swap: CSV → TSV

TSV input

CSV output

Why convert TSV to CSV?

Many tools export tab-separated values — spreadsheets, databases, log pipelines — while plenty of importers only accept commas. Paste your TSV above to transcode it instantly, with proper quoting applied wherever a value contains the output delimiter.

How it works

The converter parses your TSV locally — including quoted fields and BOM — and re-emits every row with the delimiter of your choice (comma, semicolon or pipe). No typing or header interpretation is applied: this is a pure, lossless transcoding of the table.

Frequently asked questions

Is my TSV data uploaded to a server?: No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
What happens to values that contain commas?: They are quoted automatically, following the CSV standard. A real CSV writer handles quoting and escaping, so the values themselves are never altered.