CSV → TSV vs TSV → CSV — Which Should You Use?
Same tabular data, different delimiter. CSV separates fields with commas; TSV separates them with tabs. These two tools swap one for the other, nothing more, nothing less. Pick by which delimiter your destination expects.
Use CSV → TSV when
- A tool or pipeline expects tab-separated input but you have a CSV file.
- Your fields contain commas, and tabs would avoid the quoting headaches.
- You're moving a spreadsheet export into a TSV-based system.
Use TSV → CSV when
- A tool or spreadsheet expects comma-separated input but you have TSV.
- You need the more universally recognized CSV format.
- You're preparing tab-separated data for a CSV-based import.
Side by side
| CSV → TSV | TSV → CSV | |
|---|---|---|
| Direction | CSV → TSV | TSV → CSV |
| Input delimiter | Comma | Tab |
| Output delimiter | Tab | Comma |
| Header row preserved? | Yes | Yes |
| Quoted fields handled? | Yes, RFC 4180 parsing | Yes, RFC 4180 output |
| Where it runs | Browser, no upload | Browser, no upload |
under the hood
One honest caveat: CSV → TSV is the lossy direction if a field contains an embedded newline. TSV can't keep it in one cell, so the converter refuses by default (with an escape option). TSV → CSV is always lossless because CSV quoting can hold anything.
bottom line
They're the same operation pointed in opposite directions. Use whichever matches the direction you're converting. If your data has commas in fields, TSV is often the calmer format; if you need broad compatibility, CSV is the safer destination.
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