GitHub - OpenCoworkAI/open-codesign: Open-source Claude Design alternative. One-click import your Claude Code / Codex API key. Prompt → prototype / slides / PDF. Multi-model (Claude, GPT, Gemini, Kimi

Open CoDesign is an MIT-licensed, local-first desktop app (Electron + React 19) that turns text prompts into polished prototypes, slide decks, and marketing assets. It positions itself as an open-source alternative to Claude Design, v0, Lovable, and Bolt.new. Key differentiators include bring-your-own-key (BYOK) support for 20+ model providers (Claude, GPT, Gemini, Ollama, DeepSeek, etc.), one-click import of existing Claude Code/Codex API keys, local SQLite version history, five export formats (HTML, PDF, PPTX, ZIP, Markdown), and twelve built-in design skill modules. The app runs on macOS, Windows, and Linux with no mandatory cloud workspace, keeping credentials and app state on-device.