Sketch architecture diagrams, map user flows, or brainstorm with your team on an infinite canvas built for speed.
A canvas today, a platform next. The code is public on GitHub and we’re building the plugin API in the open — so if the thing your team needs doesn’t exist yet, say so. That’s genuinely how it gets built.
Runs on your own Claude subscription. No API key.
An open plugin API is in the works
Drawdy today is a canvas. Drawdy next is a canvas you extend — snap in any plugin your team needs. One surface, your tools, no limits.
Want early access? Tell us what you’d buildThe obvious question
Version history, team libraries, live collaboration — all behind Excalidraw Plus, all free in Drawdy today. Boards on your device are unlimited; the free plan includes one cloud board, and Pro lifts that cap. The two rows nobody else ticks are the ones we care most about: extensions that run on the board. Speed is the other thing we build for, but it belongs in prose rather than a tick: the canvas indexes elements spatially, so selection and erase stay quick on a busy board, and it diffs by reference so undo and redraw touch only what changed.
Drawdy is free to start and free to keep using, and the free tier does not expire. Boards on your device are unlimited; the free plan includes one cloud board for syncing and sharing, and Pro lifts that cap. The ticks above describe where each tool stands on — not a promise about which individual features stay free. The Excalidraw column is the free app; Paid marks what needs Excalidraw Plus. Three extensions ship on Drawdy today, presentation mode among them, and the same API is open for building your own. Competitor rows come from each vendor’s own pricing page.
Want the long version? Drawdy vs Excalidraw, Drawdy vs tldraw, or the wider field of Excalidraw alternatives.
Simple pricing
Forever · no card
Start drawing3 months free, then billed monthly · or $10/yr
Start 3 months freeYour local boards never expire, never lock, and never need a card.
FAQ
Yes. You can start without an account and keep working without paying: boards on your device are unlimited, and the free plan includes one cloud board for syncing and sharing. Pro lifts that to unlimited cloud boards and starts with three months free. The free tier itself does not expire.
No. Open Drawdy and the canvas is there — no signup, no email. An account only matters once you want a board synced to the cloud or shared with a team.
We love Excalidraw. Drawdy focuses on builders: live objects instead of flattened strokes, first-class architecture and flow-mapping primitives, and multiplayer designed for standups, not just sessions. Today the free tier includes version history, team libraries, and one cloud board, where Excalidraw keeps cloud storage entirely for its paid Plus tier.
Yes. Drawdy is local-first: boards live on your device, so drawing keeps working with no network at all. Cloud sync is opt-in, per board.
On your device by default. Nothing leaves your machine until you turn on cloud sync for a board, which is what lets you reach it from another device or collaborate.
Share links are end-to-end encrypted. The board is encrypted in your browser with AES-GCM, and the key rides in the link's fragment — the part browsers never send to a server. Anyone holding the full link can open the board, so treat it like a password.
Yes. Share a board and everyone edits the same canvas at once, with live cursors. Guests can join from the link without making an account.
Export to SVG, PNG, or Drawdy's open .drawdy JSON format at any time. Your canvases are yours — copy them out whenever you want.
Partly. Select elements in Excalidraw, copy them, and paste straight onto a Drawdy board — shapes, text, and arrows arrive as editable objects. Opening a saved .excalidraw file directly isn't supported yet.
That is the part we build for hardest. Elements are indexed spatially, so selecting, erasing, and hit-testing stay quick no matter how much is on the board rather than getting slower with every shape. History and redraw work off reference-equality diffs, so undo touches only what actually changed, and live cursors are throttled so collaboration never floods the document. A single board holds up to 10,000 elements.
Yes. The canvas runs an extension host, and features ship through it rather than around it: presentation mode is itself an extension, alongside Drawdy Hello and a Claude Canvas extension that can read and draw on your board. The same API is open for building and sharing your own, so a plugin you write runs on exactly the same footing as ours.
The canvas is open
Sketch a system, map a flow, or think it through with your team — no signup, no setup, just a canvas and a link to share.
Start drawing — it’s free