* Chipmunk 1.5.4 – Leopard 10.5.+ – http://www.furry-rodents.com/
* Chipmunk 1.2 – Tiger 10.4.+
Find all duplicates. Fast. Find duplicates where ever they are what ever name they have. Chipmunk considers strictly content. No mucking about with creation dates and file names and stuff. You will be amazed how quickly Chipmunk eats through hundreds of megabytes, considering it compares the content of these files.
Search all drives connected to your Mac If you can access it you can search it. External drives, network shares, removable media, you name it.
Delete duplicates more intelligently Delete all files in a folder that have duplicates elsewhere. Or vice versa: Delete all files outside a folder that have duplicates inside it. Or hand pick your candidates, of course.
Undo, Retrieve From Trash You have been too quick on the trash button? Not a problem, just hit Undo. You can also retrieve files selectively from the trash. Quick Look, Reveal In Finder and Growl Support Quick Look or reveal any file you like in Finder (Quick Look available only when run on Leopard)