FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
ScreenTray - A better way to capture, annotate and share screenshots
Photoshop.com - Photoshop.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
piZap - Free online photo editing software.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...