Bashupload - Upload files from command line to share between servers
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.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
Dropover - Mac app for easier drag & drop
BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.
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.