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Change CSV Delimiter Online

Change CSV delimiters online. Convert comma, semicolon, tab, or pipe-separated CSV files and download the updated file. Fast, free, and private.

No server upload Auto-detect input Comma · semicolon · tab · pipe
File

Drop a CSV here or browse

One file · up to 25 MB · stays in your browser

Need Sample Files?
Separators
.csv

Add a CSV file to get started.

0 Rows
0 Columns
— Input
— Output

Where to go next

Edit, merge, or convert after your separators are fixed.

After you change separators
CSV Editor Tweak cells in a grid before you share the file. Open → CSV to JSON Ship clean rows to an API or script. Open → CSV to XML Turn rows into structured XML for systems that expect it. Open → CSV to Excel Hand off an .xlsx to spreadsheet users. Open →
Related CSV tools
CSV Merge Stack several exports into one sheet. Open → CSV to vCard Build contact cards from people rows. Open → CSV Validator Sanity-check a broken export first. Open →

Learn

Guides & answers

Quick walkthrough and the questions people ask before they change separators.

How to change a CSV delimiter

Use this when an export uses one separator and the next tool expects another—for example semicolon exports from Europe into a comma-only importer.

  1. Upload one CSV. Drop a file (up to 25 MB). Nothing is uploaded to our servers; the browser does the work.
  2. Confirm the input separator. We auto-detect comma, semicolon, tab, or pipe from the first row. Override or enter a custom character if the guess is wrong.
  3. Choose the output separator. Pick comma, semicolon, tab, pipe, or a custom character for the download.
  4. Optional polish. Turn on quote-all fields and pick LF or CRLF line endings when a target app is picky.
  5. Download. Name the file and save. Then open it in the CSV editor, merge more sheets in CSV merge, or convert to JSON / Excel.

CSV delimiter — questions people ask

1. What does this tool do?

It rewrites your CSV using a different column separator—for example semicolon → comma—so the next app can open it correctly.

2. Do my files leave my device?

No. Conversion runs in your browser. We do not upload the CSV contents to our servers.

3. Auto-detect got it wrong. Now what?

Switch Input delimiter from Auto-detect to comma, semicolon, tab, pipe, or Custom and enter the character your export actually uses, then download again.

4. Which output delimiter should I pick?

Match the system you will open next: many US tools expect commas; European Excel locales often use semicolons; warehouses and some ETL jobs prefer tabs.

5. When should I quote all fields?

When a downstream importer is strict, or when cells may contain the same character as the delimiter (commas inside addresses, for example).

6. LF vs CRLF?

LF is the usual choice on macOS and Linux. Pick CRLF if a Windows-only tool rejects the file or shows everything on one line.

7. File size limit?

25 MB, same as our other CSV tools.

About the CSV Delimiter Converter

Upload a CSV, auto-detect or set the input separator, choose a new output delimiter, and download—ideal when Excel, ERP, or locale exports disagree on comma vs semicolon vs tab.

Normalize separators before the next handoff

European exports often use semicolons; US tools expect commas; warehouses may want tabs. Changing the delimiter in the browser avoids opening a spreadsheet just to re-save.

Edit cells in the CSV Editor, stack files in CSV Merge, or continue to CSV to JSON, CSV to Excel, or CSV to vCard.

Auto-detect the input separator

We guess comma, semicolon, tab, or pipe from the first row; override anytime if the guess is wrong.

Pick the output delimiter

Write comma, semicolon, tab, pipe, or a custom character so the next system accepts the file.

Optional quoting and line endings

Quote every field and choose LF or CRLF when a target app is picky about CSV dialect.