How to Effectively Find and Delete Duplicate Files on Mac?

DupeGuru is a popular option. It is available for free. You can choose the folders or drives you want to scan. DupeGuru scans for duplicates based on their content, names, or similar names and provides a list of detected duplicates. You can customize your search criteria to match different scenarios. It allows you to easily preview and delete duplicate files on mac.

Pros: Free and open-source, highly customizable, efficient.
Cons: Interface may be less polished than paid options.

The Mac Finder has a built-in search function, but it is not as good as a dedicated app at finding duplicate photos, especially if the photo file names are different. It's also not as easy to use for previewing files. However, it can be useful to find duplicate files with the same name. You can create "Smart Folders" in Finder to search for files with the same name or of a certain type.

• Open Finder.
• Go to "File" > "New Smart Folder" (or press Option + Command + N).
• In the search bar at the top right, type in the file type you are looking for, such as "jpg" or "png".
• Click the "+" button to add search criteria. You can search by "Name", "File Size", "Date Created", etc. to try and find duplicates.