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Excalidraw

The hand-drawn whiteboard the whole internet sketches on.

Tool·Design & Color·Freemium

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Excalidraw screenshot

About Excalidraw

Excalidraw is an open source virtual whiteboard with a charming hand-drawn style, ideal for architecture sketches and quick diagrams. Drawings are stored locally in your browser, and live collaboration links are end-to-end encrypted.

Best for: Use this when you need to sketch a system diagram that looks thoughtful rather than corporate.

Pros

  • Local-first, your drawings stay in the browser
  • End-to-end encrypted collaboration links
  • Fast, minimal and open source

Cons

  • The sketchy aesthetic is not right for formal documents
  • Cloud workspaces and libraries live in the separate paid product

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