Google shut down the API — this site no longer works
On March 31, 2025, Google removed the Photos Library API scopes that allowed third-party apps to read your Google Photos library. Since then, no API lets an app browse your photos anymore, so this site can no longer find your duplicates.
This change is permanent: the replacement API (the Picker API) only gives access to photos you select by hand, which makes a duplicate finder impossible to offer.
Thanks to everyone who used it over the years!
This is NOT a Google Product
It was made by a kind developer named Rémi Mikel who just wanted to share how he deleted all his duplicates on Google Photos.
Here is the old video explaining how it worked, kept here for the memories: