CSV to TSV

How CSV to TSV works

Convert comma-separated data into tab-separated values for spreadsheets and databases. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

Same data, different separator

TSV uses a tab between fields instead of a comma. The advantage is that tabs almost never appear inside real data, so quoting is rarely needed and the file is simpler to parse.

The conversion parses the CSV properly — quoted commas, doubled quotes and embedded newlines are understood — then re-emits with tabs. A naive find-and-replace on commas would break the moment a field contained one.

When TSV is the better choice

Pasting into a spreadsheet: a TSV block pastes into cells directly, while CSV pastes into one column. Loading into a database with COPY, which defaults to tabs. And any dataset where addresses or product names contain commas.

The trade is that tabs are invisible. A file with an accidental tab inside a value will shift columns silently, which CSV at least makes obvious with quotes.

Encoding and line endings

The output is UTF-8 with Unix line endings. Excel on Windows may still misread non-ASCII text unless you import rather than double-click, because it assumes the system code page.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions