nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
Preview is a simple and elegant application by Apple for viewing and working with images and PDF documents.
Preview vs Xee opinions
- It's proprietary to Mac. 2) It lacks the cycling features that let you flip through all images in a folder. 3) It lacks many image formats and doesn't do conversions to them. 4) It has no batch tools. 5) It positions itself as a PDF viewer and doesn't treat images as well (you can't combine images into a PDF, for example)
Cannot show next image in directory
ACDSee is a complex, multi-purpose application that serves for viewing, organizing and editing digital photos. Furthermore, images can be shared on social websites or your own space on the developer’s website.
Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.
Bridge CC gives you centralized access to all the files and assets you need for your creative projects. Organize personal and team assets, batch edit with ease, add watermarks, set centralized color preferences, and even upload your photos to Adobe Stock.
GonVisor is a viewer of pictures, comics, magazines, books, images in electronic format. Created to view image sequences, fitting them to the proper size, and to create and open cbr/cbz/cba/zip/rar/ace files of images.
Fragment is an image viewer with cool features like: Upload and Share, HUD User Interface, Peeking and Skimming, Animated GIFs, History, Thumbnails, Fill View and it is fast!
- Fast startup, image loading and on-screen navigation, using OpenGL;