CheatKeys - View Windows keyboard shortcuts in the current application.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation
LightShot - The fastest way to take a customizable screenshot.