Free · No signup · Browser-based

Convert TSV to CSV.

Drop a .tsv file or paste tab-separated data and get a clean CSV. Values containing commas are quoted automatically, so columns never shift. Runs in your browser — nothing is uploaded.

01 · How it works

Three steps, then done.

TSV uses a Tab between fields instead of a comma, which neatly sidesteps the comma-collision problem. This converter reads the tabs and re-emits RFC-4180 CSV: any field containing a comma, quote, or newline is quoted so the result is safe to open anywhere. It runs entirely in your browser.

i. drop

Drop or paste

Drag a file, click to choose, or paste data directly into the input pane.

ii. detect

We read the shape

Types are inferred so the output is correctly formatted — not strings everywhere.

iii. use it

Copy, download, or dashboard

Copy the output, download it, or hit 'Build dashboard' to chart what's in the data.

02 · Why ours

Smart CSV conversion by default.

Free CSV converters often produce sloppy output — every value quoted, types lost, errors swallowed. Ours infers types where it can, fails loudly when it can't, and pairs the conversion with a one-click path to a dashboard.

  • 01

    Correct types

    Numbers, booleans and dates are detected as you import, so the CSV (and any dashboard built from it) treats them correctly — not everything as text.

  • 02

    Local-first

    Your file is parsed and converted in your browser — verify in DevTools → Network. Nothing is uploaded, logged, or stored.

  • 03

    Fails loudly

    Malformed input gives a clear, specific error instead of silently wrong output — so you can trust what comes back.

  • 04

    One click to a dashboard

    Every conversion keeps a tabular copy, so you can send the data straight to our visualization tool to chart it.

"Needed a conversion. Ended up with a dashboard. That's the pattern."
— the typical csvtodashboard arc
03 · FAQ

tsv to csv questions.

What counts as a TSV?
A text file where the fields on each line are separated by a Tab — the export format of many databases, spreadsheets ('Save as Tab-delimited'), and scientific tools. A header row is assumed on line one.
Some tools only accept comma-separated input, and CSV is the more universal interchange format. Going TSV → CSV keeps your data intact while widening what can read it.
They are wrapped in double quotes (RFC 4180 style), so a comma inside a value is never mistaken for a column separator. Embedded quotes are doubled.
No. The tab-to-comma conversion happens entirely in your browser — the file never touches a server.