Paid gThumb Alternatives for Mac
There are many alternatives to gThumb for Mac if you are looking to replace it. The most popular Mac alternative is 
XnView MP. It's not free, so if you're looking for a free alternative, you could try 
digiKam or 
Photoscape. If that doesn't suit you, our users have ranked more than 50 alternatives to gThumb and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to gThumb are 
Preview (Free), 
ACDSee Photo Studio (Paid), 
qView (Free, Open Source) and 
FastRawViewer (Paid).
- ACDSee is a complex, multi-purpose application that serves for viewing, organizing and editing digital photos.
- FastRawViewer is an extremely fast RAW image viewer that allows the user to see the real RAW-data and the real RAW histogram, and it supports virtually every camera format...
- A pro tool for photographersMake sure your photo database is safe and efficiently managed.Uncompromising performance
- Viso is a beautiful minimal image viewer for MacOS. Features a non intrusive UI that allows you to get the most viewing experience out of your images.
- Retrobatch is a unique application for automating actions to tens, hundreds, and even thousands of images at the same time.
- EdgeView 2 is an image viewer. Image files can be opened as well as archive files such as ZIP and RAR in its built-in file browser without extraction. Files can be opened thru FTP directly.
- Create lovely photo web galleries directly from your Photos library on Mac. Share the generated HTML output folder with your family and friends in any possible way – e.g., via your personal website or external storage.
- ViewPic is a lightning fast and image viewer for Mac OS X, you can quickly browse through all images in a folder.
- A reliable and smooth-running picture viewer for Mac. Comprehensible interface, adaptable controls system, come with basic editing functions (rotate, resize, etc.). One of the first installs on my Mac, never regreted choosing it.