The idea of Droplr is simple—it’s a Mac application that lives in your menu bar, and you can drop files on it to share them. This uploads your file and automatically copies a shortened URL to your clipboard so you can share it. This works for all types of files, too. Images, PDFs, ZIP archives, and more. It even automatically colors and formats code. It’s become an indispensable part of my workflow for sharing bits of information.