How to Find Similar Photos in Google Photos

Turn on photo stacks in the Google Photos app (Photos tab → More → Stack similar photos). Google then groups nearly identical shots taken together and suggests a top pick. Similar photos taken at different times are not grouped; for those, search by date, or run a perceptual-hash tool over a Google Takeout export.

Similar is not the same as duplicate

The distinction decides how much thought a cleanup takes. A duplicate is the same image stored twice, so deleting one copy loses nothing and needs no judgement. A similar photo is a genuinely different image of the same moment — a second attempt, a slightly different angle — and choosing between them is a decision about the picture, not the file.

That is why tools handle the two categories separately, and why a similar-photos pass takes longer than a duplicates pass. If what you actually have is repeated copies rather than repeated attempts, start with finding duplicate photos in Google Photos instead — it is the faster win.

The similarity spectrum

What Google Photos actually groups

Photo stacks. With Stack similar photos turned on in the app, Google groups nearly identical photos of the same subject taken together within a short time and suggests a top pick. It is worth using. The catch is the time window: shots of the same scene taken minutes or days apart, and re-saved copies, stay separate.

Everything outside that window is invisible to it. The same scene shot again ten minutes later is a separate photo as far as Google is concerned. So is the same photo re-saved from a messaging app. The upload-time hash check that Google does run is exact-match only, as explained in does Google Photos have duplicate detection, and it never runs across your existing library at all.

Burst photos: the fastest similar-photo win

Hold the shutter on a moving subject and your phone can save many frames in a second, each one a full-size photo. You usually want one of them. If your phone saved the burst as a single burst item, Google Photos shows it grouped, and you can pick a favourite and delete the rest from inside it. If you tapped the shutter repeatedly instead, photo stacks are what group those frames, provided they were taken close together.

To clear bursts by hand, open the day you shot them, compare the frames side by side, zoom in to check focus on the one you want, and delete the rest in one selection. The bulk delete guide has the shift-click and drag-select shortcuts. Exact copies, as opposed to similar frames, are covered in how to find and remove Google Photos duplicates.

How near-duplicate detection works

A perceptual hash reduces an image to a small grid of light and dark values and encodes that pattern as a short fingerprint. Two photos of the same scene produce fingerprints that are close together even at different resolutions or compression levels, because the overall structure survives what compression throws away.

Comparing fingerprints gives a distance, not a verdict. Set the threshold tight and you get only near-identical copies; loosen it and you start clustering different frames of the same moment. That single dial is what separates a duplicates view from a similar-photos view, and it is why one scan can produce both.

How to clean up similar photos, step by step

1. 1

   Turn on photo stacks

   In the Google Photos app, open the Photos tab, tap More (⋮) and switch on Stack similar photos. Nearly identical shots taken together are grouped with a suggested top pick; open a stack and choose Keep one photo & delete the rest.

2. 2

   Search by date to find the rest

   Most similar shots are not tagged bursts — they are three or four attempts seconds apart. Open the day they were taken and compare side by side.

3. 3

   Sweep older years with a similarity threshold

   For shots taken far apart, export with Google Takeout and run a desktop tool with a similarity setting, such as dupeGuru's picture mode. Loosening the threshold groups near-misses, not just copies. Delete the matches in Google Photos afterwards.

4. 4

   Judge the group, not the file

   Sharpness and resolution can be ranked automatically; whether everyone's eyes were open cannot. Review each group and override the suggested keeper when it is wrong.

5. 5

   Keep one, delete the rest, empty Trash

   Deleted photos stay in Google Photos Trash for 30 days. Empty it once you are happy with what you kept, to get the space back now.

Which copy should you keep?

Photo stacks suggest a top pick, and desktop tools can rank resolution, file size and sharpness. Those are good defaults; the blurriest frame of a burst is rarely the one you wanted. Blurry shots have their own dedicated pass in deleting blurry photos in Google Photos.

What no scoring function knows is which frame has the expression you wanted. Treat the suggested pick as a starting point, skim the group, and override it when it is wrong. The 30-day Trash means an overridden call is still recoverable, so the cost of moving quickly is low.

Frequently asked questions