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TSV ↔ CSV Converter
Bidirectional live conversion between tab-separated and comma-separated values. Handles quoting, embedded delimiters, and newlines correctly. Your data never leaves your browser.
CSV (comma-separated)
TSV (tab-separated)
CSV (comma-separated)
TSV (tab-separated)
How to use TSV ↔ CSV Converter
- 1
Paste TSV or CSV
Paste either format. The tool detects the delimiter and converts to the other side live.
- 2
Quoting is handled for you
Cells with embedded commas, tabs, quotes, or newlines are quoted per RFC 4180. No data corruption from naive replacement.
- 3
Download the result
Save the converted output as .csv or .tsv.
Frequently asked questions
- Does this tool upload my data?
- No. Every parse, transform, and download runs entirely in your browser using JavaScript and Web Workers. The file never leaves your device — there is no upload endpoint and no server-side processing.
- Why not just find-and-replace tabs with commas?
- Naive replacement breaks any cell containing the destination delimiter inside quoted text. PapaParse parses the source according to its real delimiter and re-serializes safely.
- Are headers preserved?
- Yes — the first row stays the first row. The tool doesn't reinterpret headers or coerce types.
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