How to find and delete duplicate photos on iPhone

Duplicate photos build up quietly. Each one is small, but a few thousand of them can take up several gigabytes, and they make the photos you want harder to find. Your iPhone can already find exact duplicates for you. This guide shows where that feature is, what it does not catch, and how to deal with the rest.

Why duplicates appear

You save the same image more than once from a chat, an email or a website.
A messaging app saves every photo you receive to your library, including ones you already have.
You import from a camera, a computer or an old backup twice.
You edit a photo in another app and it saves the result as a new file next to the original.
You take a screenshot of a photo you already have.

Use the built-in Duplicates album

On iOS 16 and later, the Photos app detects duplicate photos and videos by itself.

Open Photos.
Go to Utilities. On iOS 16 and 17 it is near the bottom of the Albums tab. On iOS 18 and later, scroll down in the Photos app until you reach it.
Tap Duplicates. Matching photos are shown in sets, with the file size of each.
Tap Merge next to a set and confirm.
To handle everything at once, tap Select, then Select All, then Merge.

Merging keeps the version with the highest quality, combines details such as captions, keywords and favourites into it, and moves the other copies to Recently Deleted. You do not have to work out which copy is the better one.

If you cannot see the Duplicates album

The album only appears when the iPhone has found duplicates, so not seeing it can simply mean there are none. There are two other common reasons:

The scan has not finished. Detection runs in the background and can take from a few hours to a few days on a large library. It tends to make progress while the iPhone is locked and charging.
The iPhone is on an older version. The feature needs iOS 16 or later.

What the Duplicates album does not catch

The built-in feature looks for exact copies, and for the same photo saved at a different size or in a different format. It does not group photos that are only similar:

five takes of the same group photo
burst shots
the same screenshot taken a minute apart
a photo and a slightly cropped or filtered version of it

For most people these make up more of the clutter than true duplicates do. Our guide to deleting similar photos and burst shots covers them.

Use a duplicate photo remover for the rest

A dedicated app can group both kinds in one place. Cleanup: Swipe Photo Cleaner has a Find Duplicates tool for identical photos and a Find Similar Photos tool for look-alikes. Photos are grouped together, you choose the ones worth keeping, and nothing is removed until you confirm. It is available for iPhone and Android.

Whichever tool you use, check two things before you start. First, make sure it shows you the groups and lets you decide, instead of deleting on its own. Second, make sure you have a backup, as you would before any large cleanup.

Finish the job: empty Recently Deleted

Merged and deleted photos stay in the Recently Deleted album for up to 30 days, and they keep taking up space until they leave it. When you are happy with the result, open Recently Deleted under Utilities, unlock it, and delete the items permanently. This cannot be undone, so leave it for a day or two if you are not sure.

Stop duplicates from coming back

Turn off automatic saving in chat apps. In WhatsApp, for example, this is under Settings > Chats > Save to Photos. You can still save the photos you want by hand.
Share instead of saving. If you only need to forward a photo, send it from the chat or the web page without saving it first.
Use one way of importing. Choose either a cloud sync or a cable import for camera photos, not both.
Tidy up after editing. When an editing app saves a new copy, decide then which version you are keeping.

Common questions

Does merging lower the quality? No. The iPhone keeps the highest-quality version of each set.

Will it delete the photos from iCloud too? If iCloud Photos is on, yes. Your library is the same on every device, so duplicates removed on the iPhone are removed everywhere. That is the expected result.

Can I get a photo back? Yes, for up to 30 days. Open Recently Deleted, select the photo and tap Recover.

How often should I check? Once a month is enough for most libraries. Checking duplicates is a good first step in any wider cleanup, because it is quick and carries almost no risk of losing something you wanted. If you want to keep going afterwards, see how to free up storage on iPhone without losing photos.