SimpleScreenRecorder - SimpleScreenRecorder is a Linux screen recorder that supports X11 and OpenGL.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Assembly - Work smarter, not harder. Save 1 day/week with free customizable workflows. Get access to 40+ workflow templates such as Employee Recognition & Engagement. Simplify your day-to-day workflows, increase team productivity & add simplicity to your work.
LightShot - The fastest way to take a customizable screenshot.
Shutter - Shutter is a feature-rich screenshot program.