Bring your own model
Anthropic, OpenAI, Gemini, DeepSeek, OpenRouter, SiliconFlow, local Ollama, or any OpenAI-compatible relay — including keyless (IP-allowlisted) proxies. Switch providers in Settings. We don't proxy, we don't charge per token.
An open-source desktop AI design tool. v0.1.4 is out; v0.2.0 is preparing the Agentic Design update with workspace-backed sessions and permissioned local tools.


.dmg 后,Sequoia 15+ 装完需要跑一次 xattr -cr "/Applications/Open CoDesign.app" 才能双击打开。Anthropic, OpenAI, Gemini, DeepSeek, OpenRouter, Ollama — anything pi-ai speaks. No vendor lock-in.
Pick one of fifteen built-in demos — landing page, dashboard, pitch slide, pricing page, mobile app, chat UI, calendar, blog article, receipt, portfolio, email, and more — or describe your own. The first design renders in seconds in a sandboxed iframe.
Inline comments, AI sliders, and local files. Export to HTML, PDF, PPTX, ZIP, or Markdown — all on-device.
Six moments from the app — from first launch to region-level rewrites.






From a blank prompt to a finished artifact — the agent plans, writes, self-checks, and hands you something with hover states, tabs, and empty states already wired up.
We are not faster than Claude Design. We are different — open, multi-model, and local-first. The open-source alternative for teams that can't afford subscription lock-in or cloud data exposure.
| Open source | Models | Runs locally | Pricing | |
|---|---|---|---|---|
| Open CoDesign | MIT | Any (BYOK) | ✓ | Token cost only |
| Claude Design | ✗ Closed | Opus only | ✗ | Subscription |
| v0 by Vercel | ✗ Closed | Curated | ✗ | Subscription |
| Lovable | ✗ Closed | Curated | ✗ | Subscription |
| Bolt.new | Partial | Curated | ✗ | Subscription |
⭐ Star us on GitHub — every star helps more builders find an open alternative.
Bug reports, feature requests, and async discussion all happen in Issues. Security issues → SECURITY.md.
Chinese-speaking users chat in our WeChat group — the QR lives in the Chinese landing page. Codes rotate every 7 days; we refresh in-repo.