CSV Delimiter Converter
Swap a CSV between comma, semicolon, tab and pipe — and fix the UTF-8 BOM and line endings.
Everything runs in your browser — your file never leaves your device.
Tip: European Excel often expects a semicolon. Add the BOM so accented characters open correctly in Excel.
About CSV Delimiter Converter
The CSV Delimiter Converter swaps a CSV file between comma, semicolon, tab and pipe separators — or any custom character — right in your browser. It auto-detects the input delimiter, shows what it found, and rewrites the file with the output delimiter you choose while keeping quoting intact.
It also fixes the two problems that most often break CSV imports: encoding and line endings. A switch adds or strips the UTF-8 byte order mark (BOM) so accented characters open correctly in Excel, and you can normalize line endings to Windows (CRLF) or Unix (LF). European Excel installs typically expect semicolons, so converting comma CSVs is a one-click job.
Paste CSV or TSV text directly or upload a file, review the table preview, then copy the converted text or download it. Nothing is uploaded — the entire conversion runs locally.
How to use CSV Delimiter Converter
- Paste your CSV or TSV into the source pane, or upload a file; a sample is available if you want to test first.
- Leave the input delimiter on Auto (the detected character is shown) or set it manually.
- Choose the output delimiter: comma, semicolon, tab, pipe or a custom character.
- Toggle "Add UTF-8 BOM (for Excel)" and pick Windows (CRLF) or Unix (LF) line endings as needed.
- Check the preview table, then copy the result or download the converted file.