Whiteboard is a desktop canvas where developers and coding agents like Claude Code collaborate on software design, with AST-aware diffs and decision logging.
Yes, Whiteboard is open source under the MIT license.
Whiteboard is free to use.
Yes, Whiteboard can be self-hosted (the source is available under the MIT license).
Whiteboard is an MIT-licensed desktop canvas where humans and coding agents such as Claude Code collaborate on software design, with AST-aware semantic diffs and decision logging. It is actively shipping — 434 commits, 303 stars, created 2026-08-18, last pushed 2026-09-24. It self-hosts as a desktop app and serves as a shared design surface between developers and their agents.
The GTM read here is narrower than most entries — this is a dev-and-agent collaboration surface, not a revenue tool. But teams building agent-driven internal tooling hit a real problem: the design reasoning behind what an agent builds evaporates in chat scrollback. Whiteboard gives humans and coding agents like Claude Code a shared canvas to work through software design, with AST-aware semantic diffs so changes are legible at the structure level and decision logging so the "why" is retained. For an engineering-led growth team standardizing on coding agents, that shared surface is where design intent stays visible. The honest read: it is young (created 2026-08-18) though actively shipping, and the quality of the semantic diffs and decision log is best judged against your own repo before you adopt it as a team surface.