Free infinite canvas whiteboard and SDK for developers
tldraw is a free online whiteboard at tldraw.com with an infinite canvas, clean drawing tools, sticky notes, arrows and real-time multiplayer collaboration. The same technology is offered as an SDK that developers embed in their own apps to build canvas-based products, with its code public on GitHub under tldraw's own source-available license and commercial terms.
- features
- 4
- alternatives
- 7
- platform
- 1
- Updated
- Oct 12, 2026
Features
Our take
Pros
- Free whiteboard with clean, responsive drawing tools
- Real-time multiplayer collaboration through shared links
- SDK lets developers build canvas features into their own apps
Cons
- Source-available license, with commercial terms for the SDK in production
- Fewer templates and integrations than full whiteboard suites
Editorial assessment by the Alternatives.tools team, based on what the product is known for. Not a user review.
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Microsoft WhiteboardFreeFreeform digital canvas for Microsoft 365 and Teams
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User reviews
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