Convert CSV to TSV.
Swap commas for tabs for tools and pipelines that expect tab-separated values. Header row and every field preserved, and it all happens on your own device.
Why switch commas for tabs
CSV and TSV store the same thing, a plain-text table, but they mark the boundary between fields differently. CSV uses commas, which becomes awkward the moment your data containscommas (an address, a price like "1,000", a sentence): those fields have to be wrapped in quotes, and the quoting rules trip up a lot of simple parsers. Tabs almost never appear inside real data, so TSV usually needs no quoting at all, every tab is a column break, full stop. That makes it cleaner and less error-prone to read with a script or a shell tool like cut.
Where TSV shows up
Tab-separated files are the default in a lot of data and bioinformatics pipelines, and they paste straight into Excel and Google Sheets as neat columns (both apps read tab-delimited clipboard data natively). If a tool is asking for "tab-delimited" input, this is the conversion you want.
Nothing leaves your device
The conversion runs entirely in your browser. The CSV is parsed (respecting quoted fields) and re-emitted with tabs locally, so your data never uploads. Need to go back? TSV to CSV reverses it, or CSV to JSON turns it into records.
How it works
- 01
Choose your CSV
Drop a file or pick one. It stays on your device. Nothing is uploaded.
- 02
Convert in your browser
FileWhirl re-delimits your table to tabs locally, in milliseconds. No server, no queue.
- 03
Download your TSV
Grab the .tsv file, ready for whatever needs tabs.
Converts entirely in your browser, never uploaded
Header row and field values preserved
Instant, even for large tables
No watermark, no signup to try
Free and open-source parsing
CSV to TSV
This converts tabular data from CSV to TSV. Values, rows and columns carry over; a plain TSV file holds data only, so formulas, charts and cell styling are dropped, what you get is the data, cleanly structured.
Common questions
Does my file get uploaded?+
No. CSV to TSV runs entirely in your browser using local code. Your file never leaves your device and never touches our servers.
What's the difference between CSV and TSV?+
Both are plain-text tables. CSV separates fields with commas; TSV uses tab characters, which avoids quoting issues when your data itself contains commas.
Will my columns and quotes survive?+
Yes. We parse the CSV properly (respecting quoted fields) and re-emit it tab-delimited, so the structure round-trips faithfully.
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