We live in an age of images, and nowhere is this more apparent than on our devices. Whether it’s our smartphones or computers, it’s often difficult to ensure that the many, many photos we take each year don’t occupy too much space. In fact, this problem is only getting worse over time, with Google revealing in November 2020 that around 28 billion new photos and videos are now uploaded to its Photos app every week. 

This is a staggering number, and Google was actually forced to abandon its policy of unlimited image uploads for its apps in 2020. Meanwhile, other Big Tech firms, from Apple to Microsoft, put a limit on how much their customers can store on their respective cloud servers. This leaves users in a bind, since without the option of free and unlimited cloud storage, they’ll have to manage the photos on their devices themselves. 

Fortunately, there’s one type of tool Mac owners can use in order to prevent images from consuming too much memory on their hard disks. This is the duplicate photo cleaner (also known as the duplicate finder), which can find and remove any unnecessary copy of your photos, thereby leaving your Mac with extra storage space. In this article, we run through the best duplicate photo finders for Mac, explaining their pros and cons while including download links.