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CSV Delimiter Converter

Swap between comma, semicolon, tab and pipe — and fix comma decimals while you are there.

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Drop a delimited file here, or click to choose one

Converted on your device — the file is never uploaded

Converted

Quick Tool Overview

The CSV Delimiter Converter re-writes a delimited file with a different separator — comma, semicolon, tab or pipe — and can switch comma decimals to dots at the same time, which is what usually breaks European exports.

What it does
Changes the separator in a delimited file
You give it
A CSV, TSV or pipe-delimited file
You get back
The same data with the delimiter you need
Best for
Files that open in one column in Excel
Converters Free, unlimited use No sign-up Runs in your browser

About the CSV Delimiter Converter

A CSV that opens perfectly on one computer lands in a single column on another. The reason is almost always the separator: Excel in much of Europe writes and expects semicolons, because the comma is already doing duty as the decimal point, while importers and APIs nearly always want commas.

This reads the file with whichever delimiter it actually uses — detected automatically — and writes it out with the one you need, re-quoting fields as required. It can also switch the decimal style at the same time, turning 1.234,56 into 1234.56 or the reverse, which is the other half of the same problem. Quoted fields containing commas, quotes or line breaks are preserved exactly, and ragged rows are padded so the grid stays square.

Key features of the CSV Delimiter Converter

Detects what you have

The delimiter is found by column-count consistency, not by counting characters.

Decimal style too

Convert 1.234,56 to 1234.56 or back, leaving text values untouched.

Quoting rebuilt

Fields are re-quoted for the new delimiter so nothing splits in the wrong place.

Warns about bad combinations

Comma decimals inside a comma-separated file are flagged before you download.

Right extension

The download becomes .tsv or .csv to match the delimiter you chose.

How to use the CSV Delimiter Converter

  1. 1

    Paste or drop the file

    Leave the input delimiter on detect unless the file is unusual.

  2. 2

    Choose the delimiter you need

    Comma for importers and APIs, semicolon for European Excel, tab for pasting into sheets.

  3. 3

    Fix the decimals if needed

    Convert 1,50 to 1.50 or the other way round, leaving text values alone.

  4. 4

    Copy or download the result

    The file extension follows the delimiter you picked.

Frequently asked questions

By reading the first lines and choosing the candidate that gives the same column count on every one of them. Consistency is a far better signal than simply counting characters.

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