Free or paid doesn't matter. I'll be using it mostly on jpg images. This may be asking a lot, but I'd like one that can locate duplicates where one has been cropped and resized but they're the same picture. That's no critical though. Mainly need one that can save profiles and has thumbnail previews, not buggy, and is accurate. Thanks.
allizomeniz, if you're already using CCleaner, under Tools > Duplicate Finder, you'll find one. Might not be what you're looking for, but, it's a start. Just FYI. Re: https://www.piriform.com/docs/ccleaner/using-ccleaner/finding-duplicate-files
You may want to try Awesome Duplicate Photo Finder it does exactly what I needed and it is free. Hopefully it will work for you. John
I've used Duplicate Cleaner Free in past and liked it: http://www.digitalvolcano.co.uk/duplicatecleaner.html
Appreciate all the suggestions. I've settled on Awesome Duplicate Photo Finder for now. It seems very good. It doesn't have the bells and whistles I'd like, but it's a solid program. Something for photos is what I need so this does the trick nicely. It has a great side-by-side comparison preview. My only gripe is that there's no Pro version with more options.