Delete duplicate photos in Google Photos — without downloading your library
PhotoDeduper is a Chrome extension that finds exact and near-duplicate photos in your Google Photos library and moves the copies you don't want to trash. On-device. Trash-only. Recoverable for 60 days.
Free during launch. No account, no sign-up.
Google Photos can't do this itself
There is no "find duplicates" button in Google Photos. Google skips byte-identical files at upload — but the duplicates you actually see survive: re-saved copies, edited versions, screenshots of photos, WhatsApp re-downloads. They clutter your library and count against your storage.
Finds what you actually see
Exact duplicates by file identity, plus visually similar photos via perceptual matching — with a similarity slider so you decide how strict "duplicate" means.
Keeps the best copy for you
Each duplicate group comes pre-selected: highest resolution wins, originals beat edits. Review side by side and override anything before confirming.
Works in place
Runs inside photos.google.com in your own session. No exporting your library, no desktop app, no re-uploading anything.
How it works
Scan
Open Google Photos, click PhotoDeduper. It scans your library in your browser and groups duplicates — resumable if you close the tab.
Review
See every group side by side with the best copy pre-selected. Adjust the similarity slider, flip any selection.
Clean
Confirm, and the rejects move to the Google Photos trash. Undo in one click, or restore from trash for 60 days.
Safe and private by design
Trash-only, always
PhotoDeduper never permanently deletes a photo. Everything it removes sits in your Google Photos trash for 60 days.
Nothing leaves your browser
Scanning and matching run entirely on your device. No PhotoDeduper server exists. No account, no analytics, no tracking.
Fails closed
If Google changes how Photos works under the hood, PhotoDeduper stops and tells you — it never guesses with your photos.
Questions people ask
Does Google Photos have a built-in duplicate remover?
No. Google Photos silently skips byte-identical photos at upload time, but has no tool to find duplicates already in your library — and near-duplicates (re-saves, edits, screenshots) are untouched. Those are the ones eating your storage.
Is it safe? Can I get photos back?
Yes. Deletions are trash-only: photos go to the Google Photos trash and are recoverable for 60 days. There's also a one-click Undo right after each cleanup. The extension has no ability to permanently delete anything.
Does PhotoDeduper see or upload my photos?
No. Everything happens inside your browser, in your own logged-in Google Photos session. Your photos and their data never leave your machine.
Why not a desktop duplicate finder?
Google removed third-party API access to your Photos library on March 31, 2025. Desktop tools can now only work on a full export — download everything, dedupe locally, re-upload. A browser extension is the only way left to clean duplicates in place.
Is this a Google product?
No. PhotoDeduper is an independent extension that automates the Google Photos web app within your own browser session — the same clicks you'd make yourself, done faster. It is not affiliated with, endorsed by, or sponsored by Google.