# Whiteboard

> Self-hosted desktop canvas where coding agents draw architecture-level reviews of diffs. Open-source MIT: AST-based semantic diffs, diagrams linked to code.

- **Category:** Code Review
- **Licence:** MIT
- **Latest version:** diffr/0.1.22
- **Open source:** oss
- **Languages:** Typescript
- **Platforms:** Linux, Windows, Debian, Homebrew
- **Tags:** Git, Mcp, Ai Agents, Developer Tools, Code Review, Desktop app, Diagrams, Lsp, Pair Programming, Semantic Diff, Vs Code Fork, Agent Trace

## Description

Whiteboard is an MIT-licensed desktop canvas where a developer and their coding agent work through a change together. The agent connects over MCP, paints sequence and entity-relationship diagrams inside the app, and every diagram step, quote from its trace, or diff section can be opened down to the underlying code, with VS Code keybindings and language-server navigation. A semantic diff viewer written in Rust folds noisy changes: large added functions become pseudocode summaries and test or documentation edits collapse, and that behaviour is extensible through a WASM plugin system. Reviews also record which requirements a human set and which decisions the agent made, so trajectories can be audited; a follow-up Ask runs the connected agent against the open review. You install it as a .dmg, an .exe, a Homebrew cask or from a dnf/apt/pacman repository, and it works against local git checkouts, optionally driving a review server on a remote Linux machine over SSH. Usage analytics are collected unless you switch them off, and the share service plus hosted trace store are vendor-run, though traces can go to a bucket you own instead; a team-hosted product is only planned. File editing inside reviews is not possible yet, multi-repo reviews are weakly supported, and a shared review does not refresh after sharing.

## Links

- [Homepage](https://github.com/devdotfast/whiteboard)
- [Website](https://whiteboard.dev.fast/)
- [Whiteboard docs](https://whiteboard.dev.fast/docs)
- [Discord](https://discord.gg/wYvd2cpMQg)
- [Demo video](https://www.youtube.com/watch?v=ChPn3ftULWE)
- [Roadmap](https://github.com/devdotfast/whiteboard/wiki/Roadmap)

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Source: https://selfhost.directory/project/whiteboard-2