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Change CSV Delimiter

Re-save CSV with a different delimiter, quoting and line endings (comma, semicolon, tab, pipe).

Your files stay on this device

or drop them here, or paste with Ctrl+V

CSV, XLSX, XLS · up to 20 files · stays on your device

How to use Change CSV Delimiter

  1. 1Add one or more files — drag and drop or tap to choose. Accepted: CSV, XLSX, XLS.
  2. 2Adjust the settings if you need to — the defaults suit most people.
  3. 3Press “Convert”. Processing happens on your device.
  4. 4Download your CSV, one by one or all together as a ZIP.

About this tool

Re-save CSV with a different delimiter, quoting and line endings (comma, semicolon, tab, pipe). Your files are processed locally in your browser, so they're never uploaded, queued or stored — which also makes it fast. It's part of our free excel & csv tools, which work together — you can pass the result straight into related tools below.

Accepts
CSV, XLSX, XLS
Gives you
CSV
Files at once
Up to 20
Processed
On your device

Frequently asked questions

Is Change CSV Delimiter free?

Yes. There's no sign-up, no watermark and no usage limit.

Are my files uploaded to a server?

No. Change CSV Delimiter runs entirely in your browser. Your files never leave your device and nothing is stored — close the tab and everything is gone.

Which file types can I use?

CSV, XLSX, XLS. Files are checked by their actual content, not just the extension, so renamed or damaged files are caught early.

Does it work on my phone?

Yes. It works in modern mobile browsers on Android and iPhone. Heavier jobs (large PDFs, OCR) are faster on a computer.