Why is iPhoto not finding duplicate photos on Mac?

iphoto cannot find my duplicate. I can see side by side duplicate photos but iPhoto does not see them when using the "find duplicates" in the utility folder. I've let the CPU run for hours without finding even one out of 1000 photos. Any suggestions?



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MacBook Pro 13″

Posted on Mar 30, 2025 7:34 PM

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Mar 31, 2025 3:16 AM in response to Bozo55

Are you using iPhoto or Photos for Mac? iPhoto has no built in duplicate detector.

Photos for Mac can detect duplicates (since macOS 13 Ventura), but it takes a lot longer than a few hours.

For moderately sized library with just 70000 photos and videos it took more than a month before the first duplicates have been shown.

Let your Mac run over night when you are not using it and wait.

See: Remove duplicate photos and videos on Mac – Apple Support (UK)





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Why is iPhoto not finding duplicate photos on Mac?

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