Combine multiple CSV files into one

Upload your CSV files, click Combine, and get a single CSV file with all the data merged vertically.

Click or drag and drop to select files

CSV files only

{{ files.length }} file{{ files.length > 1 ? "s" : "" }} selected

Files include headers

Skip empty rows

Add new column with file names

How to Combine Multiple CSV Files

Drag and drop or click the selection area to add all your CSV files.

Click the Combine button.

Wait for the process to finish.

Download the combined CSV file!

Download Combined CSV File

Your combined CSV file is ready and downloading. If the download hasn't started, click the button below to download it manually.

About

This is a freely available tool to vertically combine multiple CSVs. This tool is provided as-is and I am not liable for any merging mistakes. If you have any questions, feel free to reach out.

Do you have a feature request or a request for another simple tool? Let me know!

Created by Keshia Rose

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Privacy

The CSV combining is fully processed locally in your own browser.

Umami is used to collect anonymous data about site usage. Umami does not collect any personally identifiable information and anonymizes all data collected. Users cannot be identified and are never tracked across websites.