SequoiaView - SequoiaView is a featured rich application that comes with the visualization technique to provide you a single view of files and documents that are stored in your hard drive.
UI Movement - The best UI design inspiration, daily
DiskBoss - A file manager with a focus on storage side of things: Monitoring, classing, storage, duplicate...
Muzli - UI/UX and Design Inspiration Chrome Extension
RidNacs - RidNacs is a very fast disk space usage analyzer for Microsoft Windows.
UI Jar - Hand-picked design inspiration for your real life projects