Epilepsy Blocker - Block flashing GIFs that may cause an epileptic seizure
Design Principles - An open source repository of design principles and methods
Stark for FigJam - Stark for FigJam provides designers, engineers, and product managers role specific accessibility checklists.
UXmeter - Like Tinder, but for finding the hottest web design in town
Adee Accessibility Tool - Adee Accessibility tool is now available in Adobe XD!Adee is the most comprehensive accessibility testing tool for designers and developers.
Atlassian Design - Design, develop, and deliver