ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
EarTrumpet - Volume Control for Windows
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Volume2 - Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control.
LightShot - The fastest way to take a customizable screenshot.
Sound Control - App-specific volume control