This tool allows you to merge multiple CSV files together.
We do not collect or store any of your uploaded data. All processing is done on your local machine.

Drop your csv files here

or

FAQ

Yup. As long as you're using a standard CSV format, it should work fine.

No. All data processing is done on your local machine, and Authority Hacker does not collect or store any information.

Check that there are no Plugins or Addons installed on your browser that may be interfering with the tool's functionality. You may wish to try in a private/incognito window.

At the moment, no. It will only work with CSV files and not alternative Spreadsheet files such as .XLS files.