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Unduped
A duplicate finder that shows what you’ll really free
Finds duplicate files on your Mac and external drives and counts only the space you’ll really get back. Copies that share their data with the original and iCloud-only files don’t count. Keeps one copy, moves the rest to the Trash, and can undo.
Hey, I'm Aleksandr. I built Unduped because I wanted a duplicate finder whose number I could believe.
On a Mac, a copy you make in the Finder usually shares its data with the original, so deleting it frees nothing. I checked with a 1 GB file: the copy took 0 MB and gave back 0 MB. Unduped asks the disk which copies are like that and only counts what really comes back.
It always keeps one copy of every file, moves the rest to the Trash, and can undo your last 5 cleanups. It also finds photos on your disks that are already in Photos.
Since 1.1 there's a section for developer builds and caches too.
Scanning is free and shows every result, and the first 500 MB are free to move. After that it's a one-time $9.99, no subscription.
I'll be around all day. Tell me what it finds on your Mac, or what it gets wrong.
About Unduped on Product Hunt
“A duplicate finder that shows what you’ll really free”
Unduped was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #329 on the daily leaderboard. Finds duplicate files on your Mac and external drives and counts only the space you’ll really get back. Copies that share their data with the original and iCloud-only files don’t count. Keeps one copy, moves the rest to the Trash, and can undo.
On the analytics side, Unduped competes within Mac, Productivity and Developer Tools — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how Unduped performed against the three products that launched closest to it on the same day.
Who hunted Unduped?
Unduped was hunted by Aleksandr Guzenko. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Unduped including community comment highlights and product details, visit the product overview.
Aleksandr Guzenko