Building the product · Independent · 20 Oct 2026

kgoedecke/doop

The open-source alternative to Paper.design. A multiplayer design canvas where humans and AI agents design together, live. MCP built in.

← Building the product
Doop: multiplayer design canvas. Humans and AI agents design together, live.

In simple English

Doop is a shared digital whiteboard for creating web designs and layouts. Humans can draw and type in the browser just like in other design programs. At the same time, artificial intelligence tools can connect to the canvas and build designs automatically. Everyone watches the changes happen live on the screen without needing to refresh. You can run it for free on your own computer or pay for hosting online.

What it is

Doop is a collaborative design environment that combines a web-based canvas with a built-in Model Context Protocol (a way for software programs to talk to artificial intelligence assistants) server. It renders real web pages inside isolated frames so designs look and act like actual websites.

What it is good for

Solo builders and designers who want to watch an artificial intelligence assistant sketch web pages, write code, and update layouts right next to their mouse cursor.

Stars883
LicenceAGPL-3.0
Latestdesktop-v0.5.0 (2026-10-13)checked 20 Oct 2026
Last code change2026-10-19
Written inTypeScript
Setup effort
3 / 5
Payoff
5 / 5
Good
  • Real-time collaboration lets humans and artificial intelligence agents edit the same canvas at the same time.
  • Runs locally with a simple command using built-in database storage and no complex setup.
  • Connects directly to coding assistants so they can generate visual layouts.
Watch for
  • Requires Docker knowledge or command-line experience to self-host on a private server.
  • Heavy use of cloud intelligence models can lead to high ongoing subscription or API costs.
  • The AGPL licence requires you to share your source code if you modify the software and offer it as a public service.
Replaces

Paper.design or Figma when paired with manual AI prompt copying

Works well with

Claude Code

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Install
git clone https://github.com/kgoedecke/doop && cd doop
bun install
bun run dev

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