Roll20 - Roll20 is a suite of easy-to-use digital tools that expand pen-and-paper gameplay.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Astral Tabletop - Create, host, and manage your tabletop role-playing games — online or in person
Invision - Prototyping and collaboration for design teams
D&D Beyond - Official online toolset for Dungeons & Dragons tabletop gaming
Sketch - Professional digital design for Mac.