Whiteboard is an open-source desktop application that provides a shared canvas for humans and AI coding agents to architect and review software.
It integrates with agents like Claude Code and Codex, allowing them to render visual diagrams and decision logs that link directly to the underlying source code.
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Interactive canvas for agent-generated sequence and entity-relationship diagrams
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Bidirectional linking between visual elements and source code
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AST-aware semantic diff viewer written in Rust
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Decision log for auditing autonomous agent choices
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Built on Code OSS with native LSP support and VS Code keybindings
Free
The desktop app is free and open-source (MIT license). A hosted version for teams is planned for the future, but the core tool will remain self-hostable.
Best for
Reviewing large, agent-generated code changes at the architectural level and iterating on design prototypes.
Not ideal for
Directly editing source code files, managing cross-repository reviews, or users requiring a lightweight application (the current build is based on Electron).
A powerful, specialized tool for developers struggling with the cognitive debt of agentic coding, offering a much-needed visual layer for reviewing AI-generated architecture.
Launched version 0.1 on September 24, 2026, featuring initial support for macOS and Linux, a Rust-based semantic diff engine, and an agent SDK for MCP-based drawing.
As of
Is Whiteboard free?+
Yes - Whiteboard is Free. The desktop app is free and open-source (MIT license). A hosted version for teams is planned for the future, but the core tool will remain self-hostable.
Is Whiteboard open source?+
Yes - Whiteboard is open source. The desktop app is free and open-source (MIT license). A hosted version for teams is planned for the future, but the core tool will remain self-hostable.
Who is Whiteboard best for?+
Reviewing large, agent-generated code changes at the architectural level and iterating on design prototypes.
Who is Whiteboard not ideal for?+
Directly editing source code files, managing cross-repository reviews, or users requiring a lightweight application (the current build is based on Electron).
What are the best Whiteboard alternatives?+
The closest Whiteboard alternatives on ai.dosa.dev are Cursor, Devin, Trae - all listed under AI-Native IDEs & Editors.
Who makes Whiteboard?+
Whiteboard is developed by /dev/fast. It is listed in the AI-Native IDEs & Editors category on ai.dosa.dev.
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