About this tool
Use CSV File Merger to complete this focused task without sending your content to a third-party service.
Using CSV File Merger
Paste or enter your content, run the tool, and review the result before using it.
Helpful tips
- Check the labels, units, and input format before running the tool.
- Review the result, then use the copy button where available.
- For important decisions, verify your inputs with an appropriate professional source.
Is my information private?
Yes. This developer tools processes your input in the browser and does not upload it.
Is this tool free?
Yes. You can use it without creating an account.
How to use this tool
- Choose two or more CSV files with the same header row.
- Merge them locally in your browser.
- Download the combined CSV file.
About CSV File Merger
Combine exports that use the same header row without uploading their contents. The tool checks every file structure before it creates the download.
Does this tool send my data anywhere?
No. Its calculation or transformation happens on your device.