The software should be easy to use and support customized search criteria. You should check that if you can select folders easily, exclude folders, select file types, specify file size and modified date, etc. Customized search can make the scanning much faster and more accurate.
Apart from the features mentioned above, the program should also be easy-to-use for most computer users. After careful comparison by the aspects above, you can select the best duplicate file finder to help you.
Duplicate images are different from back up files.