Pingo - Optimize images for the web quickly 🖼️⚡
PixBuilder - Free Photo Editing Software for PC
Imakiku - Imakiku is an audience response system for real-time voting, posting comments, and surveying.
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
Blooket - Blooket is an interesting application that provides you with a wide range of features to create activities for class engagement.
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.