Ant Design System for Figma - A large library of 2100+ handcrafted UI components
InVision Design System Manager - Create and maintain your design system at scale.
Weld - Create websites with any design, for any device, for free, including domain.
DaisyUI - Free UI components plugin for Tailwind CSS
Invision - Prototyping and collaboration for design teams
Getting Started with Design Systems - A free book that's simple in structure, human in explanation