Quail TSV to CSV

Convert TSV to CSV online — no signup, no upload, no limits. Paste tab-separated data or drop a .tsv file. The tool converts tabs to commas and properly quotes fields that contain commas, newlines, or double quotes per the RFC 4180 CSV standard. Works with data copied from Excel, Google Sheets, or any spreadsheet app. Everything runs locally in your browser.

What is the difference between TSV and CSV?

TSV (Tab-Separated Values) uses tab characters to separate fields. CSV (Comma-Separated Values) uses commas. Both are plain-text tabular formats, but CSV is more widely supported by spreadsheet apps, databases, and APIs.

Does it handle fields with commas?

Yes. When converting to CSV, any field that contains a comma, newline, or double quote is automatically wrapped in double quotes per the RFC 4180 CSV standard.

Can I paste tab-separated data from a spreadsheet?

Yes. Copy cells from Excel or Google Sheets and paste into the input. Spreadsheet apps copy data as tab-separated text, so it converts cleanly to CSV.

Is my data uploaded?

No. Conversion runs entirely in your browser. Your data never leaves your device.