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CSV ↔ TSV Converter

Convert between CSV and TSV locally in your browser.

Change delimiters while preserving commas, real tabs, double quotes, and line breaks inside cells.

Input files and results stay in your browser.

Conversion direction

HTML header handling

CSV input

Open a local file

Maximum 5 MiB. The file is never uploaded.

TSV result

Safe table preview

Convert a table to display its preview here.

How to use

  1. 1

    Choose a direction

    Choose a conversion direction between the two formats on this page.

  2. 2

    Set the header and input

    For CSV or TSV input, choose whether the first record is a header.

  3. 3

    Inspect the result

    Review warnings and the safe preview, then copy or download the result.

Conversion rules

CSV uses commas and TSV uses real tabs. Cells containing the active delimiter, line breaks, or double quotes are quoted; the two characters \t remain plain text.

Frequently asked questions

Are commas or tabs inside cells lost?
No. Cells containing a format delimiter are preserved as quoted fields.
Are line breaks inside cells preserved?
Yes. Markdown uses <br>; CSV and TSV use line breaks inside quoted fields.
Does the converter infer value types?
No. Every cell remains a string.