Fabricator - Build your UI toolkit for website design
Atomize - The most advanced Design System for Sketch
Subform - A CAD-inspired design tool for UX/UI design.
Sketch Confetti - Generate gorgeous confetti patterns in 1 click.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Sketch Repo - Collection of resources for anyone who uses Sketch