Choosy - Choosy opens links in different browsers as specified, according to rules, set by the user.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
MenubarX - MenubarX.app is a powerful Mac menu bar browser that can pin any webpage on your menu bar just like a native App.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
OpenIn.app - Open links, mails and files in the apps you want
LightShot - The fastest way to take a customizable screenshot.