ScreenTray - A better way to capture, annotate and share screenshots
Dropzone - If you want your file uploads to work even without JavaScript, you can include an element with the class fallback that dropzone will remove if the browser is supported.
Droplr - Droplr is a tiny application that aims at helping people share things easier.
Dropover - Mac app for easier drag & drop
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Unclutter - Unclutter is an app that is designed to help Mac users bring order to their desktop. Among other features, this powerful piece of software provides quick access to a user's notepad and clipboard.