Convert TSV to CSV Online
Convert TSV files to CSV format directly in your browser. No upload required — your data never leaves your device.
Drop your .tsv file here
or click to browse — max 50 MB
About this conversion
TSV and CSV are near-identical formats — the only difference is the delimiter character. Converting TSV to CSV makes your data compatible with the much broader ecosystem of tools that default to comma-delimited input. Most databases, spreadsheet tools, analytics platforms, and data libraries expect CSV unless the delimiter is explicitly specified.
Common use cases include converting bioinformatics tool output (many genomics tools produce tab-delimited files) for analysis in Excel or a database, normalising data received from partners or legacy systems that use TSV, and preparing pipeline inputs for tools that require standard CSV. Any value in your TSV that contains a comma is automatically quoted in the CSV output following RFC 4180 rules — your data is never modified.
Frequently Asked Questions
What is CSV format?
CSV (Comma-Separated Values) is a plain-text tabular format supported by virtually every data tool, spreadsheet app, and programming language.
Is my TSV data private?
Yes — completely. Your file is never uploaded to any server. All conversion happens inside your browser using WebAssembly — locally, with no upload. Once you close the tab, nothing is retained.
What is the maximum file size?
The free limit is 50 MB. For larger files, performance depends on your device's available memory — most modern machines can handle 500 MB to 1 GB comfortably.
What is the difference between TSV and CSV?
TSV is the better choice when values contain commas. CSV has broader tool support and is the default expected format for most databases and analytics platforms.
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