Use case
Phone backups, burst shots, chat downloads, and edited exports pile up fast. This workflow helps you reclaim space without blind deletes: scan, review every group, pick a keeper, and send mistakes to the Recycle Bin.
Workflow
01
Pick Pictures, an external drive, or a NAS share. Enable recursion so subfolders are included. Content hashing catches exact copies even when filenames differ.
For burst shots and resized exports, run perceptual image matching as a second pass. Treat those groups as review required, not auto-delete.
02
Open side-by-side previews when available. Check resolution, crop, and edit state. The smaller file is not always the worse file.
DupeZappa shows the before-state so you can compare keepers against duplicates before apply.
03
Use a consistent rule: highest resolution, newest date, shortest path, or files in a Masters folder. Smart Keeper rules help at scale.
See the smart keeper rules guide for keep_highest_resolution, keep_oldest, and keep_shortest_path patterns.
04
Send deletes to the Recycle Bin for a recovery window. Apply in smaller batches so undo stays meaningful. Re-run a quick scan when you are done.
Never delete the only copy in a group until you have confirmed the keeper opens correctly.
Free tool
Scan a local folder in your browser with no install and no upload. Groups exact duplicates, flags image near-matches, and totals recoverable space before any risky action.
Desktop app
Move to the desktop app when you need perceptual matching, NAS paths, Smart Keeper rules, undo history, and Recycle Bin apply with operation journal.
Toolkit picker
Scope-focused comparisons for Windows duplicate finders.
When GPL cross-platform dedup is enough, and when a Windows preview-first toolkit replaces dupeGuru plus companion apps.
When DigitalVolcano Duplicate Cleaner is enough for Windows dedup, and when a preview-first toolkit replaces paid single-purpose cleanup.
Free AllDup duplicate finding vs preview-first dedup plus rename, search, and undo in one Windows toolkit.
Related reading
Preview groups, pick a keeper, and use the Recycle Bin without losing originals.
Try a browser scan before you install: exact duplicates and image hints with no upload.
Scan network shares with progress, exclusions, and cross-root review discipline.
Take control
Scan, review every group, and apply with undo history. DupeZappa keeps photo cleanup preview-first on Windows.