File & Data Conversion Tools

TSV to CSV Converter

Convert tab-separated values (TSV) to comma-separated values (CSV) - correctly quotes any field that itself contains a comma.

Paste or upload TSV data below - this tool re-delimits it as proper, correctly-quoted CSV.

TSV Data

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A field that happens to contain a comma is automatically quoted in the CSV output, since an un-quoted comma would otherwise be misread as a new column.

Why Not Just Replace Tabs with Commas?

A naive find-and-replace of tabs with commas silently corrupts any field that already contains a comma, since CSV readers would then misinterpret it as an extra column boundary. This tool parses the TSV properly and re-serializes it as correctly-quoted CSV.

How to Use It

Paste or upload TSV data.
Click Convert.
Copy or download the resulting CSV.

Limitations

This assumes standard tab-delimited input without CSV-style quoting inside the TSV itself (which is unusual for real TSV files) - if your source data already uses quoted fields, verify the result carefully.

Example

A TSV row with the fields Smith, John, 42 and Pune (separated by tabs) becomes:

"Smith, John",42,Pune

Only the field that contains a comma is quoted; the others stay as they are.

Where TSV Comes From

Copying cells from Excel, Google Sheets or LibreOffice - the clipboard holds tab-separated text.
Database and command-line exports (mysql -B, psql with tab output, many analytics tools).
Research and bioinformatics datasets.

Why You May Need CSV

Many import screens - e-commerce platforms, CRMs, email tools, ad platforms - accept only .csv files. Converting properly keeps values with commas, quotes or line breaks in the right column, so the import does not shift data into the wrong fields.

Tip

To move data from a spreadsheet into a CSV-only tool, copy the cells, paste them here, convert and download - no need to save and re-export the whole sheet.

Go back with CSV to TSV, or convert the result with CSV to JSON and CSV to SQL.