Combine CSV files
Bring matching CSV files together under one set of headings.
Your files stay on your device. Free. No sign-up.Drop your files here
CSV · up to 25 MB per file · 20 files / 60 MB total
Your files stay on your device. No upload needed.
CSV keeps values as text in the file, but spreadsheet apps may interpret them as formulas, numbers or dates. Import as text for exact values, or use CSV to Excel for explicit text cells.
How to combine csv files
- Choose CSV files with the same column headings.
- Put the files in the order you want their rows to appear.
- Combine them into one UTF-8 CSV.
What you can use
Up to 20 UTF-8 CSV files with exactly matching header names, column order and delimiter.
A little extra help
Can my files have different columns?
No. Make the headings and their order identical first. Requiring compatible columns prevents values from ending up under the wrong heading.
What if the tool cannot process my file?
Check the supported formats and limits above. A smaller file or an up-to-date desktop browser may help. Encrypted, damaged or unusually complex files can be unsupported. Your original file is not changed.