ShareX / ShareX

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

Tichau / FileConverter

File Converter is a very simple tool which allows you to convert and compress files using the context menu in windows explorer.

greenshot / greenshot

Greenshot for Windows - for more information look here:

cyanfish / naps2

Scan documents to PDF and more, as simply as possible.