Dashboard UI Kit - A modern & responsive dashboard UI kit for designers.
Drovp - A plugin based cross-platform desktop application that allows creating configured drop zones for any drag and drop operations.
Motherboard Dashboards - Fully coded design solution for web-applications creating
Stream UI Kit - A beautiful open source Bootstrap 4 UI kit
Volt: A Prototyping Starter Kit - Learn interaction design in Framer with this UI kit
HackerThemes - Bootstrap 4 themes and tools for web developers