Dashboard UI Kit - A modern & responsive dashboard UI kit for designers.
Device Shots - Generate high-resolution device mockups using a screenshot.
Bots UI Kit - Fully customizable Sketch UI Kit for Messenger Platform
Facebook Design - Devices - Images and Sketch files of popular devices.
Landing UI Kit - Handcrafted UI components for landing pages
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.