Excalidraw

Excalidraw is primarily known as a collaborative diagramming and sketching tool, but its real-time multiplayer canvas makes it surprisingly fun for casual drawing activities and creative games. Everything you draw has a distinctive hand-sketched aesthetic that makes even simple diagrams look charming. Multiple people can draw simultaneously with live cursors showing where everyone is working.

What sets Excalidraw apart from other collaborative canvases is its toolset. Beyond freehand drawing, you get shapes, arrows, text, and the ability to create structured diagrams. This makes it versatile enough for both creative play and practical use. Groups can play drawing games, create collaborative murals, design mock UIs together, or just doodle while chatting.

The tool is fully open-source and privacy-focused. Collaboration links are end-to-end encrypted, meaning even Excalidraw's servers cannot see your drawings. There are no accounts required, no data collection, and the entire project is transparent. For teams that want a beautiful, functional collaborative canvas that respects their privacy, Excalidraw is the gold standard. It has become particularly popular among developers and designers who use it for work and then repurpose it for team-building activities.