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Column Merger - CSV/Excel Tool

Merge CSV/Excel columns instantly in your browser - no data leaves your computer

Drag & Drop your CSV/Excel file

or

Supports: CSV, XLSX, XLS (Max 10MB)

File.csv

0 columns, 0 rows

Select columns to merge:

Processing your file...

Columns merged successfully!

Merged Results

How It Works

Upload File

Drag or select your CSV/Excel file. Data never leaves your browser.

Select Columns

Choose which columns to merge and configure options.

Download Result

Get your merged file instantly with new combined column.

100% Secure - Files processed in your browser only