Free CSV to TSV converter

Why convert CSV to TSV?

People convert CSV to TSV because a CSV is only text with commas in it, holding no formulas, no formatting and no second sheet, while tab characters never clash with the commas inside your data, so TSV survives messy text.

How to convert CSV to TSV

1. Choose your CSV file. Drop it on the box above, or tap to browse. You can pick several files at once.
2. Confirm the target is .tsv. It is preselected when your browser can encode it; otherwise the closest available target is chosen. Adjust quality, size or the other options if you want to.
3. Convert and download. Press Convert, then Download. Your file stays on your device the whole time.

What is a .csv file?

CSV is a table written as plain text: one row per line, values separated by commas. Every spreadsheet, database and programming language on earth can read and write it, which is why it remains the default way to move data between systems — at the cost of storing no formatting, no formulas and no idea what a date is.

What is a .tsv file?

TSV is CSV with tabs instead of commas, which sidesteps the classic problem of values that themselves contain commas. It is common in bioinformatics, log processing and anywhere data is piped between Unix tools.

What to expect from this conversion

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook. Delimiters and quoting are detected automatically, including fields that contain commas.

Is it private?

Yes, by design. Every conversion happens inside your own browser using your device’s processor — there is no server that receives your CSV file, so there is nothing for anyone to store, scan or leak. You can confirm it yourself: open your browser’s developer tools, watch the Network tab while you convert, and you will see no upload.

Questions about CSV to TSV

Is this CSV to TSV converter free?

Yes, completely. There is no account, no daily limit, no watermark and no premium tier.

Is my CSV file uploaded to a server?

No. The conversion runs inside your own browser using your device's processor. The file is read from your disk, converted in memory and saved back to your disk — nothing is transmitted, so there is nothing for anyone to store.

Can I convert CSV to TSV online without downloading software?

Yes. This is an online CSV to TSV converter that runs in your browser, so there is nothing to install and no app to trust with your files. It works the same on a phone.

What happens to the quality?

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook. Delimiters and quoting are detected automatically, including fields that contain commas.

How do I convert CSV to TSV on Windows, Mac or Linux?

The same way on all three: open this page in Chrome, Edge, Firefox or Safari, drop the CSV file, press Convert and download the TSV. Nothing is installed and no admin permission is needed.

Can I convert several CSV files at once?

Yes. Select as many files as you like and they are converted one after another in a single tap, with a download for each and a zip of all of them.

Can I convert CSV to TSV without Python or a script?

Yes — that is what this page is for. Python does the same job well if you already have it set up and thousands of files to process; for one file, or a handful, the browser is faster than installing anything.

Should I keep the original CSV file?

Yes — keep it, converting never touches it. The reason to make a copy in another format is that a CSV is only text with commas in it, holding no formulas, no formatting and no second sheet.

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