Gallerynizer

Find exact duplicates, blurry shots, and screenshots piling up, then shrink big videos and turn one into a highlight reel. 100% on-device, nothing ever uploaded.

Gallerynizer finds what's actually wasting space in your Photos library — and lets you decide what to do about it, one confirmed decision at a time. Nothing is ever deleted automatically.

FIND WHAT'S TAKING UP SPACE

• Exact Duplicates - byte-for-byte identical photos and videos, verified with real file hashing, not just similar-looking guesses.
• Similar Photos - near-duplicate bursts and near-identical shots, grouped together with a suggested best shot (sharpest, best exposed, eyes open) you can freely override.
• Blurry Photos - out-of-focus shots found by real sharpness analysis.
• Screenshots - every screenshot in one place, with a one-tap "keep my favorites" option.
• Receipts & Documents - photos of receipts, forms, and documents, detected by on-device text analysis.
• Large Videos - your biggest videos, with an honest size estimate before you touch anything.

RECLAIM SPACE FROM VIDEOS

• Re-encode large videos to HEVC - typically 40-60% smaller, same resolution, using your iPhone's hardware encoder. See the estimate before you commit; keep the original until you're sure.
• Turn a long video into a highlight reel - Gallerynizer samples the video, finds its distinct scenes, and assembles the best moments into one shorter video, automatically. Review it, then decide whether to keep the original, the highlight, or both.

YOU'RE ALWAYS IN CONTROL Every review screen shows you exactly what was found before anything happens. Nothing is auto-deleted - every removal goes through iOS's own system confirmation, the same dialog you'd see deleting a photo yourself. A History tab keeps a plain log of what Gallerynizer has removed and when, so you always know what happened.

PRIVATE BY DESIGN, NOT BY POLICY Gallerynizer has no server, no account, and no analytics or tracking of any kind. Every scan - duplicate detection, similar-photo clustering, blur scoring, document detection - runs entirely using Apple's on-device Vision and Core Image frameworks. Your photos, videos, and metadata never leave your iPhone. There is no way for Gallerynizer to upload anything, because it has no networking code that does so - verified against every dependency in the app, since it has none beyond Apple's own frameworks.

Gallerynizer is built entirely with Apple's native frameworks - SwiftUI, PhotoKit, Vision, Core Image, AVFoundation - for a fast, fully on-device experience with no third-party code anywhere.