What is Excalidraw?
Excalidraw is a free, open-source online whiteboard that lets individuals and teams create hand-drawn-style diagrams quickly and collaboratively. It’s designed for brainstorming, wireframing, mind mapping, product planning, and interactive meetings. With its informal sketch-like visuals and seamless real-time collaboration, Excalidraw is widely used by developers, designers, educators, and creative teams who need a simple yet powerful way to visualize ideas.