Browser-only
CSV/TSV ??? (Batch Delimiter Switch)
Convert CSV<->TSV safely in your browser. Quoted delimiters and multiline cells are parsed correctly.
??? server upload
Quoted fields supported
Multiline cells supported (large data caution)
Large datasets or cells with line breaks may take longer to process.
CSV TSV Conversion Tool
Conversion mode
?? (paste or file)
Drop a file here (.csv / .tsv / .txt)
Processed locally in your browser. ???thing is sent to a server.
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Advanced options
How to use delimiter conversion
- 1 Paste CSV/TSV (or choose a file).
- 2 ?? CSV->TSV, TSV->CSV, or ?? detect.
- 3 Click Convert, then ?? or ????.
Example: CSV -> TSV
?? (CSV)
name,notes,score "Aki","a,b inside quotes",10 "Mio","multi line cell",8
?? (TSV)
name notes score "Aki" "a,b inside quotes" 10 "Mio" "multi line cell" 8
Tips to avoid comma/tab conversion failures
- Commas or tabs inside quotes are part of the same cell.
- A newline inside a quoted cell is normal and doesn't mean a new row.
- If Excel shows garbled text, try enabling UTF-8 BOM.
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How are commas inside quotes handled?
We parse CSV correctly, so "a,b" stays as one cell. We never do simple text replacement.
What encodings are supported?
UTF-8. If Excel shows garbled text, turn on "?? UTF-8 BOM for Excel."
Do you support multi-line cells?
?. Cells can include line breaks, but large data may take longer to process. For big files, use file conversion and download.
Is my data sent to a server?
???. Everything runs locally in your browser.
What if conversion fails?
The delimiter may be different. Try ?? detect or set the input delimiter in Advanced options.