GitHub Open-Sources AI Prototyping Tool Replica, Generating Interactive Prototypes With Your Own Design System

Summary

GitHub Design released the open-source AI prototyping tool Replica on October 28, 2026, letting product teams turn ideas into interactive prototypes using their existing design system (components, styles, documentation). Features include design-system-guided prototype generation, creating and adjus…

Key points

Product teams that want AI-generated prototypes to conform to existing design standards can self-host and reuse their own component libraries.
If a prototyping tool does not consume your own design system, its output often cannot go directly into the development process; open source and self-hosting fill exactly this gap.
Product and design teams can validate the workflow in a self-hosted environment before deciding to adopt, avoiding handing design assets to an external service.

AI 工具設計工作流

Editorial note

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