Meta Open-Sources Internal Design System Used Across 13K+ Apps

Vjeux · x · 2026-08-03

Meta has officially open-sourced its internal design system, which has been secretly used across more than 13,000 apps for 8 years.

The system includes 150+ ready-to-use components and supports zero-plugin builds with seamless theme switching. Developers can now instruct AI to generate interfaces using these standardized components, significantly boosting front-end development efficiency. The project has already garnered 11k stars on GitHub.

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