Browser-local TSV utility

Convert TSV to CSV, after checking the data

Open TSV, inspect the parsed columns, optionally filter and sort, then download the active view as CSV.

Open a TSV file

Files stay in this browser. Maximum 50 MB per file.

Correct CSV quoting

Commas, quotes, and line breaks are escaped according to CSV conventions. Formula-like values receive a leading apostrophe for safer spreadsheet use.

Conversion follows your view

Filters and sorting are deliberate transformation steps: the downloaded CSV contains the visible rows in their active order.