Using PixCompare, you can compare picture files to search for duplicates or similar pictures in a large collection of picture files. It works on JPEG, PNG and GIF files.
I finally finished the Cocoa update for PixCompare! This was a complete rewrite, so that current and future Mac OS releases will be supported properly. Starting with this version, I’m also going to charge a small fee for the application. I plan to add new features over the next couple of months, including the now missing printing functionality. If you have any ideas or feature requests, contact me!