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To download Gemini: The Duplicate Finder from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Gemini: The Duplicate Finder

By MacPaw Inc.

Editors' Choice

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Stop wasting space on duplicates. Gemini finds duplicates on your Mac and removes them. It’s quick, easy, and saves you hard drive space.
Compatible and optimized for OS X Yosemite!

“...Gemini does its job well, and with just the right amount of cheek, at that.” Macworld
“It could have looked like a dog and I would still have enjoyed the way that it worked, but having it look and feel as great as it does is a nice bonus.” TheNextWeb
“Gemini's speed is really impressive.“ TUAW

Featured in the Mac App Store Best of 2012

• Fast and accurate scanning algorithms
• Cleans iTunes and iPhoto libraries
• Works with external drives and network volumes
• Removes duplicate folders too!

• Auto Select all duplicates with one click
• Originals remain untouched
• An array of one-click, filter selection buttons
• Advanced contextual menu for power users

• Beautifully crafted, Retina-compatible design
• Drag and drop files, folders, or entire drives
• Data chart shows you what needs cleaning
• Watch your duplicates technically shred to pieces

• Sorting filters make scanning simple
• Control-click in Finder to select and scan
• Send duplicates to Trash or erase them completely
• Customizable select and ignore lists
• Built-in file preview mode makes selection easy

Remove duplicate files right now, once and for all, with Gemini: The Duplicate Finder!

What's New in Version 1.5.12

• Ready for OS X El Capitan


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Customer Reviews

Excellent piece of finding multiple duplicates fast

I have used duplicate finder for a few years and trust its findings. It has not deleted anything which affected my current profile settings, and definitely speeds us your large file transfers 2GB more easily. I notice it gets stuck when it finds 50GB or more; it could be my 16GB is inadequate for the task. I would also recommend using their other piece of software I use confidently, Clean my Drive; I have found a trick I would like to share 1. use duplicate finder first, then boot up clean my drive, and use the clean the trash button to empty the apple trash can much quicker; however, if you use this process, you can not go back to any more operations on duplicate finder, but the only option left is newest file and that usually is less than 3-5% of the duplicate population.
Use these software products together for a much more powerful and quicker maintenance of duplicate and system junk.
John Berger and I have no paid or unpaid dealings with this company. I have searched and tried many software utilities and these two are stables of my toolbox.

It finds all duplicates and lets me choose what to delete

I agree that this is a very useful app. However, although it finds all duplicates, you want to be very careful to not let it automatically remove all duplicates. In my case, I have duplicate files in backups for my website - and it isn’t a good idea to remove those duplicates.
This version allows for selecting specific folders to scan.
You can also individually vet duplicates to choose what to delete, and even to not delete specific duplicates. If it finds tons of duplicates, this can take a long time - but it is extremely necessary to go through them all to make sure you don’t delete required duplicates.

Great for upgraders

I have carried data over from computer after computer and am very paranoid about losing anything in transfers. I’ve wound up with nested duplicates all over the drive. It would take hours and hours to attempt to find and delete all of these duplicate files. Gemini dug throught my entire 1TB SSD in about 5 minutes and I managed to get 18GB of space back in one run. The program found many other duplicates that I wasnt quite sure about, so I left those, but I’m pretty darn happy to get that much space back! Great program, worth every penny, works great in El Capitan also.

Gemini: The Duplicate Finder
View in Mac App Store
  • $9.99
  • Category: Utilities
  • Updated:
  • Version: 1.5.12
  • Size: 16.0 MB
  • Languages: English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish
  • Seller:

Compatibility: OS X 10.7 or later, 64-bit processor

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