Private by default
Think visually.
Keep it yours.
Whiteboards, technical diagrams, and presentations in one local-first browser app. No account, no application server, and no diagram content sent to MapMedium.
Works offline after the first successful load
Start with the right canvas
One editor, tuned for different kinds of visual work.
Recent documents
Your documents stay in this browser profile until you download or delete them.
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Useful starting points
Editable templates bundled with the app and available offline.