ShareX
getsharex.com
ShareX is an extremely versatile open-source screen capture, file sharing, and productivity tool for Windows. It supports fullscreen, active window, region, and scrolling screen captures, along with GIF and MP4 video recordings. Features include rich annotation tools, automated watermark insertion, built-in OCR text recognition, and seamless automatic uploads to over 80 custom cloud storage destinations or image hosts via configurable hotkeys.