Excalidraw is a lightweight virtual whiteboard designed for quickly sketching diagrams, wireframes, flowcharts, and visual ideas. It uses a hand-drawn style to keep visuals approachable and is available as a free hosted app, a self-hosted option, and a paid collaboration service.
The hosted Excalidraw app is free for basic personal use, with limited private collaboration rooms. Paid Excalidraw+ plans add advanced collaboration features such as unlimited private rooms, version history, team libraries, and admin controls; Pro is commonly priced around $8 per user per month billed annually, with Team and Enterprise tiers adding more governance and support. Self-hosting remains free under an open-source license.
Open Source
Excalidraw is excellent for quick visual thinking, product wireframes, flowcharts, and collaborative whiteboarding. Its simplicity and open-source nature are major strengths, while its limited advanced controls and paid team features are the main drawbacks. It is best for designers, developers, product teams, educators, and anyone who wants fast low-fidelity diagrams without heavy setup.
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