ProppyJS - Functional props composition for UI components (React & Vue)
iOS 12 GUI - Free collection of UI components and screens of iOS 12
Appbase.io - Search stack for building modern apps
Landing UI Kit - Handcrafted UI components for landing pages
Deja vu - A mind-blowing interactive piece to promote an album. Wow.
Invision - Prototyping and collaboration for design teams