CSV Merger
Paste two CSV datasets and merge them into one. Columns are matched by header name.
How it works
- 1
Paste the first CSV
With its header row.
- 2
Paste the second CSV
With its header row.
- 3
Copy or download the result
One combined CSV.
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Watermarks added
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Devices supported
Frequently asked questions
The result has all columns from both; missing values are left blank.
Combine CSV data
When two CSVs have the same columns, their rows are simply stacked. When the headers differ, the merged file gets every column from both and leaves cells blank where a source has no value.
Columns are matched by name, not by position, so different column order is fine. Nothing is uploaded.