how do i delete duplicate photos in albums

Hello purrplepam,

This page can help out with identifying and merging duplicate photos: Merge duplicate photos and videos on iPhone - Apple Support

On the iPhone this is available in iOS 16 and newer.

If you don’t have any duplicate photos or videos in your library, the Duplicates album doesn’t appear.

1. Tap Albums, then tap Duplicates below Utilities.

2. Duplicate photos and videos appear next to each other.

3. Tap Merge to combine the duplicates, then tap Merge [number] Items.

4. Merging combines the highest quality version and all of the relevant data across the duplicates, and keeps that one in your library. The remaining duplicates are moved to the Recently Deleted album.

If you're using macOS this page can help: Remove duplicate photos in Photos on Mac - Apple Support

Note that you'll need to have macOS Ventura or macOS Sonoma installed for it to be available.

Duplicates appear automatically in the Duplicates album in the sidebar. (Depending on the size of your library, duplicates may take some time to appear as Photos analyzes your photos.)

Cheers.

It depends on what version of Photos you're running?

If it's Version 8.0 from Ventura the app will search for the duplicates and show them in a smart album titles Duplicates in the sidebar:

Then you can select the photos in that album and opt to have them merged, i.e. merge the metadata and keep the larger image pixel wise.

If you're on an earlier version of Photos then you'll need a 3rd party app.

You want an app that will identify the potential duplicates, put them in an album or mark them with a keyword for easy retrieval and deletion by you. You don't want one that does the deletion itself for obvious reasons. 

I've run tests on the these two apps with the following results and found them to be safe to use:

PowerPhotos - $29.95  

PowerPhotos is the iPhoto Library Manager version for Photos and is very powerful. Although more expensive I would recommend it as it has more capabilities than the others like the capability to merge Photos libraries or copy photos, both original and edited versions, along with their metadata between libraries.

PhotoSweeper - $9.99 - Demo version available.

PhotoSweeper compares bitmaps and/or histograms so it can detect duplicate images even if they have different file sizes, file names, image sizes and capture dates.