Change CSV Delimiter Online
How do you convert commas to semicolons or change CSV separators? Drop your CSV file below, select your target separator (like comma, semicolon, tab, or pipe), and click "Change Delimiter". Whether you need to convert semicolons to commas, change comma to tab, or convert tab-separated files to standard CSV, our tool automatically detects the original separator, parses it locally, and downloads your converted file instantly.
Drop your CSV file here or click to browse
Processed locally — never uploaded
How to convert CSV separators (step by step)
- Add your file. Drag and drop the CSV into the box above, or click it to browse. A preview of the first rows appears instantly.
- Pick a target delimiter. Select the output separator you want to convert the file to: comma, semicolon, tab, or pipe.
- Click "Change Delimiter". The file will be processed instantly inside a background worker.
- Download the converted file. Save the new file directly to your device.
Why use this CSV Delimiter Changer?
- Private by design: your files never leave your computer, keeping all conversions completely secure.
- No limits, no signup: convert commas to semicolons, commas to tabs, or pipes to commas as many times as you need.
- Visual validation: preview the table structure before exporting to verify your delimiters.
- Versatile separator converter: change commas to semicolons ( ; ), semicolons to commas ( , ), commas to tabs ( \t ), or change delimiters to pipes ( | ).
Frequently asked questions
How do I change the delimiter of a CSV file?
Upload your file into the tool above, choose the target separator you want to convert to (e.g. Semicolon, Tab, Pipe or Comma) and click Change Delimiter. The converted CSV downloads instantly. Everything runs on your device, so your data remains private.
Can this tool convert comma-separated files to semicolon-separated?
Yes. It automatically detects if your original file is comma-separated and parses it, then exports it with semicolons if you select the Semicolon option.
What delimiters are supported?
We support conversion to standard commas (,), semicolons (;), tabs (\t, which turns it into a TSV file), and pipes (|).
Is there a limit on CSV file size?
There is no fixed limit. The file is processed locally using background stream workers, so even large files of several hundred megabytes convert quickly without freezing your browser.
Is my data secure?
Yes, 100%. All processing occurs locally in your web browser. Your file is never uploaded to a server, making it safe for confidential or private business data.