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TSV → CSV

Convert TSV to CSV.

Turn tab-separated data into a comma-separated CSV that opens cleanly in Excel, Google Sheets or Numbers — converted on your own device, never uploaded.

Convert nowOr use the universal converter
Converts in your browserNo signupNever uploadedFree

How it works

  1. 01

    Choose your TSV

    Drop a file or pick one. It stays on your device — nothing is uploaded.

  2. 02

    Convert in your browser

    FileWhirl re-delimits your table to commas locally, quoting any field that needs it. No server, no queue.

  3. 03

    Download your CSV

    Grab the .csv file, ready for any spreadsheet app.

Converts entirely in your browser — never uploaded

Fields with commas are safely quoted

Instant, even for large tables

No watermark, no signup to try

Free and open-source parsing

Converting a lot of these?

FileWhirl Pro unlocks large files and unlimited batch — or convert them straight from your own code with the FileWhirl API.

See plans

Common questions

Does my file get uploaded?+

No. TSV to CSV runs entirely in your browser using local code — your file never leaves your device and never touches our servers.

Will commas in my data break the CSV?+

No — any field containing a comma, quote or newline is automatically wrapped in quotes per the CSV standard, so spreadsheets read every column correctly.

Can I open the result in Excel?+

Yes. The output is standard CSV that opens directly in Excel, Google Sheets, Numbers and anything else that reads CSV.

Related workflows

CSV to TSVCSV to JSONUniversal converter