gThumb

gThumb is an image viewer and browser for the GNOME Desktop. Features Image Viewer

ACDSee

ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won’t take up much space on your system.

ACDSee becomes ACDSee Photo Studio — ACDSee Photo Studio Standard 2018 continues the ACDSee legacy

Adobe Photoshop Lightroom CC is a commercial photo processor and image organizer.

FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.

Imagine is an Image & Animation Viewer for Windows with screen capture function.

high quality photo editing software, that enables you to fix and enhance photos.

Xee lets you easily browse and manage images on your Mac. Browse images within folders and archives, move and copy them right in the app.

XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!

Zoner Photo Studio is a feature-rich image viewer and image organizer software.