Miro - Scalable, secure, cross-device and enterprise-ready team collaboration tool for distributed teams. Join 2M+ users & 8000+ teams from around the world.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Note.ly - Note.ly is an easy-to-use platform that allows you to save thoughts and ideas in notes and share them with anyone.
Invision - Prototyping and collaboration for design teams
tldraw - A tiny little drawing app.
Sketch - Professional digital design for Mac.