How to delete duplicate photos on Android

Updated July 2026 · PhotoDeduper

Short answer: duplicate photos on an Android phone live in two different places, and each needs its own fix. Duplicates in the phone's storage (chat re-saves, download copies) are cleaned with Files by Google. Duplicates in your Google Photos library — the ones you see in the Photos app — can't be auto-removed on the phone at all: the app has no duplicate finder. The fix there is a one-time cleanup of the cloud library from desktop Chrome, which then syncs to your phone and every other device.

Where Android duplicates come from

• Messaging apps — WhatsApp and Telegram save incoming media to their own folders. If Google Photos backs those folders up, every photo a friend sends back to you lands in your library next to your original.
• Downloads — the same image saved twice from the browser or email gets a "(1)" filename and both copies stay.
• Edited copies and screenshots — an edit saved next to the original, or a screenshot of a photo you already have.
• Two devices backing up the same shot — often at different compression levels, so Google treats them as different files.

Step 1: Clean duplicates in the phone's storage (Files by Google)

1. Open Files by Google (pre-installed on most Android phones).
2. Go to the Clean tab.
3. If duplicate files are found, a duplicate-files suggestion appears — review and delete the copies. Google documents this in its free-up-space guide.

This frees phone storage, but it only sees files on the device. Anything already backed up to Google Photos stays duplicated in the cloud — and keeps counting against your Google One storage.

Step 2: Delete duplicates in the Google Photos app (manual only)

1. Open the Google Photos app and scroll chronologically — duplicates usually sit together because they share a capture date.
2. Long-press one photo to start selecting, tap the extra copies, then tap the trash icon.
3. Deleted photos stay in trash for 60 days, so mistakes are recoverable.

Honest assessment: fine for a handful of known duplicates, hopeless for years of accumulation. The app has no duplicate finder, no side-by-side comparison, and re-compressed copies rarely sit next to each other.

Step 3: Clean the whole library once, from a computer

For a library-wide cleanup, borrow any computer with Chrome for fifteen minutes. Since Google removed third-party API access to Google Photos in March 2025, a browser extension working inside your own photos.google.com session is the only automated way in — and because it cleans the cloud library itself, your phone reflects the result as soon as it syncs.

The short version: install PhotoDeduper from the Chrome Web Store (free, no sign-up), let it scan your library at photos.google.com, and approve the cleanup it proposes — the rejected copies land in the recoverable Google Photos trash. Then pick up your phone: they're gone there too. The full walkthrough, including the manual and Takeout alternatives, lives in the main guide: How to delete duplicate photos in Google Photos →

Stop duplicates coming back

The biggest repeat offender is folder backup. In the Google Photos app, open your profile → Photos settings → Backup → Back up device folders, and turn off backup for folders like WhatsApp Images. Chat re-saves then stay on the phone (where Files by Google can catch them) instead of re-entering your cloud library.

Which fix do you actually need?

• Phone storage full → Files by Google, plus Google Photos' own free-up-space tool once photos are backed up.
• Duplicates visible in the Photos app → they're in the cloud; one desktop run with an extension clears them everywhere.
• Both → do the desktop cleanup first, then the phone cleanup — the cloud copy is the one that costs you storage quota.