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TSV ↔ CSV Converter

Convert between tab-separated and comma-separated values with proper quoting. Move data between Unix tools and Excel cleanly — local conversion, free, no signup.

100% Local Browser Native

How to Use the TSV ↔ CSV Converter

1. Paste TSV or CSV

Tabular data in either dialect.

2. Convert dialect

Quoting and escapes handled properly.

3. Copy converted data

Paste into the target tool.

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Frequently Asked Questions

When TSV over CSV?

Unix pipelines, log exports, and bioinformatics favor tabs (commas appear in text constantly). Excel prefers CSV — convert at the boundary.

Quoting handled?

Yes — embedded tabs/commas, quotes, and newlines quote and escape per RFC 4180. Hand-rolled splits corrupt these; proper parsing doesn't.

Large files?

Hundreds of thousands of rows convert locally in seconds. Million-row files split by time or key first.

Is data uploaded?

No — conversion runs locally in your browser. Data never leaves your device.

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Last updated October 2026