CSV Merger
Combine several CSV files into one, matching columns by header name or position.
Combine scattered files into one table
Monthly sales exports, lists from different branches or split datasets need to be merged into one file for analysis. The CSV Merger does it in seconds.
Matching options
- By header name: columns with the same name match even if their order differs; all columns are kept and missing values left empty
- By position: files with the same structure are stacked in column order
Track the source
Optionally add a column with the source file name to every row so you know where each record came from. Processing happens in your browser.
How to use CSV Merger
- Choose the CSV files to merge.
- Set the matching method.
- Optionally add the source file name column.
- Download the merged CSV.
Why use this tool?
Merges files correctly, even with different column layouts, without copy-paste errors.
FAQ
What if the files have different columns?
Use 'Match by header name': every column is kept and each row fills the columns it has.
Is the header row repeated?
No, the merged file has a single header row.
Can I remove duplicate rows too?
After merging, remove duplicates with the CSV Deduplicator.
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