TwinSweep — Finds exact copies and near-identical photos, always keeps one, moves the rest to the Trash — and can undo it. Pay once, no subscription.
Clear out duplicates without the fear
7-DAY FULL TRIAL · NO ACCOUNT · ONE-TIME PURCHASE · MACOS 14+
What it does
06Exact duplicates
Groups files by size, then confirms with a full SHA-256 checksum — no false matches from similar names or sizes.
Near-identical photos
Spots the same photo resized, re-compressed or re-exported, and keeps the one with the most pixels.
Trash, never delete
Extras go to the Trash, never deleted for good. One click — or one sentence to your AI — undoes the last clean-up.
Always keeps one
Every group keeps at least one file. Before moving anything it re-checks that files haven't changed since the scan.
Fast and light
On an Apple Silicon MacBook, 10,000 files scanned in about 2.5 seconds using around 136 MB of memory. Nothing runs in the background.
Careful by default
Skips system folders, ~/Library, app bundles, hard links and iCloud files that aren't downloaded — so it never triggers a mass download.
Just ask your AI
MCP · SHORTCUTS · CLIWorks with Claude, ChatGPT, Cursor, Siri & Shortcuts — say it in plain words
- “Clean up duplicate files in my Downloads folder”
- “How many GB of duplicate photos are in my Pictures folder?”
- “Keep the sharpest copy and remove the rest in this folder”
- “Find duplicate videos larger than 1 GB”
- “Undo the last clean-up”
Pay once
Stay private
Ask your AI
Private by design
03Runs on your Mac
Your files never leave this Mac. TwinSweep only goes online to check your license and, if you allow it, for updates.
No lock-in
Results stay in normal files you can open anywhere.
Small and fast
Built in Swift for macOS. Dark Mode, VoiceOver, keyboard first.
One-time purchase
$19
Use on up to 3 Macs · free updates for TwinSweep 1.x · 14-day refund, no questions
FAQ
06Is this a subscription?
No. You pay once and keep the app. Updates for version 1.x are free.
Can it delete something by mistake?
TwinSweep never deletes files permanently. It moves extras to the Trash, always keeps at least one copy in every group, re-checks files before moving them, and can undo the last clean-up.
Does it work with my Photos library?
Not yet. Version 1.0 works with files and folders. Support for the Photos library is planned for a later free update.
Which files does it skip?
System folders, ~/Library, app bundles and packages, symbolic links, hard links (they are the same file) and iCloud files that are not downloaded to this Mac.
Does it upload anything?
No. Scanning and comparing happen on your Mac. It only checks your license online and, if you allow it, looks for updates.
Can I use it on more than one Mac?
Yes, on up to 3 Macs. Try it free for 7 days; if you buy and change your mind, email us within 14 days for a full refund.