CSV to TSV Converter

This converter swaps the comma delimiter in a comma-separated file for a tab, producing tab-separated values without changing the underlying rows or columns. The most direct fit is feeding data into tools and editors that expect tabs: pasting a table straight into a spreadsheet cell range without triggering CSV import dialogs, loading data into database utilities and bulk-import paths that default to tab delimiters, or preparing input for command-line tools like cut and awk that treat tabs as the natural field separator.

It is also useful when your data is comma-heavy. Free-text fields, addresses, and number formatting that uses commas force a CSV file into heavy quoting, which some lightweight parsers handle poorly. Switching to tabs sidesteps that: commas become ordinary characters in the data, and the delimiter rarely collides with the content. For developers and analysts moving exports between systems, or office and admin users who just need a paste-ready table, that quieter format can remove a class of import errors.

You provide CSV text or a CSV file in the browser, the tool processes it on your device, and you get TSV back to copy or download. Nothing is uploaded to a server and nothing is retained once you close or reload the tab. Under the hood it fully parses the CSV first, then re-emits each row joined by tabs, so it correctly reads quoted fields, doubled quotes used as escapes (""), and commas or line breaks embedded inside quoted cells.

Input line endings of LF, CR, or CRLF are all understood; the output is written with plain newline (LF) line endings. Quoting that existed only to protect commas in the source is unwound, since commas no longer need protecting in TSV. The tool does not change values, infer types, reorder or rename columns, detect headers, or alter encoding. It is a delimiter conversion, not a cleanup or reshaping step, and it does not read XLSX, JSON, or other formats — only comma-separated text.

The main pitfall is data that already contains tab characters inside a cell. TSV has no universally honored quoting standard, so to keep the row intact the tool wraps such a cell in double quotes. Many TSV consumers ignore that quoting and will read the embedded tab as an extra column break, shifting every field after it. If your cells may hold tabs, this format is a poor fit.

Two related issues catch people. First, if your source is not genuinely comma-delimited, treating it as CSV will produce a single fat column or split fields in the wrong places, so confirm the input really uses commas. Second, cells containing newlines or quote characters are still emitted with quoting in the output, which strict tab-only readers may not interpret as you expect. The converter also assumes one consistent delimiter throughout; mixed or semicolon-delimited files will not map cleanly.

Open the TSV in the destination tool, not just a plain text viewer, and confirm the column count matches the original and that the header row lines up with its data. Spot-check rows that held commas, quotes, or long free-text fields, since those are where a delimiter switch most often goes wrong, and scan specifically for any row where columns appear shifted, which usually signals an embedded tab. If your workflow needs CRLF line endings, note that the output uses LF and adjust on import.

For anything official, financial, legal, or otherwise consequential, verify the converted file manually against the source rather than trusting it at a glance. Because the tool keeps your data on-device and does not store or check it, the correctness and suitability of the output for your purpose is yours to confirm before you share or submit it.