XnView MP stands for Multi Platform = it is available for Windows, Linux and MacOS. It is a continuation of the older XnView Classic. In my opinion it is a great alternative to Windows photos app or any Linux image viewer that comes preinstalled. I even think it is an alternative to IrfanView. It is really fast and simple to use, supports more than 500 image formats, has built in folder browser, image converter, editor... AND MORE!
Adobe Captivate - Adobe Captivate is a rapid responsive authoring tool that is used for creating elearning content...
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Articulate 360 - Articulate 360 supports e-learning developers in every step of the course authoring process.
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
iSpring Suite - A comprehensive yet easy-to-use authoring tool for creating professional online courses like a pro – even if you’re a complete beginner.
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.