SysTools Duplicate File Finder is a simple tool for finding and removing duplicate files from a computer and external storage devices. It can scan selected folders, drives, USB drives, flash drives, and other supported storage locations to identify duplicate photos, videos, documents, music, and other files. The tool helps users review duplicate files before deleting them, so they can choose which copies to keep. It can compare files using different details such as file content, name, and extension to identify matching files. Duplicate File Finder is useful for users who want to clean unnecessary copies, organize their files, and free up storage space without manually checking every folder.