Who it is for
People who think in diagrams and want one drawn from a description instead of dragging boxes around.
Collaborative whiteboards created and edited from chat
Overview
Canvs puts a whiteboard behind the conversation. New boards can be generated two ways: from a described layout of shapes, or from Mermaid diagram syntax, which covers flowcharts, sequence diagrams, and similar notation.
Existing boards are not read-only. The app can inspect what elements a board already contains, change them, and remove saved canvas content. Everything lives in a private Canvs workspace tied to the account.
The sample prompts run from interface sketching, such as roughing out a contact form, to a sign-in sequence diagram and an organization chart built from a handful of executive roles.
People who think in diagrams and want one drawn from a description instead of dragging boxes around.
Mermaid syntax is accepted as board input, which gives a text path into a visual canvas.
Availability
Canvs.io whiteboard is listed in the ChatGPT apps directory only. Mikhail Voronkov has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
Same company
Draw and edit diagrams on an infinite collaborative canvas
Claude
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This is an independent catalogue entry compiled by Node8 from Canvs.io whiteboard's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Mikhail Voronkov, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.