TSV to CSV Converter

Runs in your browser — your files are never uploaded.

Convert tab-separated values into a standard comma-separated file. OkConverter parses your TSV and re-serializes it as RFC 4180 CSV, quoting any value that contains a comma, quote or line break. Everything runs locally in your browser — your data is never uploaded.

How to convert TSV to CSV

  1. 1

    Drop your .tsv file onto the box, or click to choose one.

  2. 2

    OkConverter parses the tab-separated fields and re-encodes them as CSV.

  3. 3

    Click "Download" to save your .csv file.

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Frequently asked questions

Can I open the result in Excel or Google Sheets?+

Yes — the output is standard RFC 4180 CSV, which every spreadsheet app imports directly. Values containing commas, quotes or line breaks are automatically quoted so the columns line up correctly.

What about values containing commas?+

They are automatically wrapped in quotes so the CSV stays valid, following the RFC 4180 standard.

Is my header row preserved?+

Yes. The first row is carried through unchanged, just re-encoded with commas instead of tabs.

Are my files uploaded?+

No. The conversion runs entirely in your browser on your device — your TSV is never uploaded.

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