instashare - Share your photos to instagram from your mac
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.
Frame.io Watch Folders - Accelerated, secure, & indestructible uploading to Frame.io
Dropover - Mac app for easier drag & drop
FileRoom.io - Browser airdrop to send files to anyone, on any device
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.