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Subframe is an AI-powered design tool for building product interfaces. Design visually with real UI components, generate designs & prototypes with AI that understands your product, and export production-ready React code.

Learn Subframe in four minutes with our design co-founder Filip Skrzesinski.

How Subframe works

Design-first, code-native. Subframe replaces the traditional design-to-code hand-off process by allowing designers and developers to build with the same material: code.
1

Build your design system

Subframe is the source-of-truth for your theme, components, and documentation. Start with the pre-built library or create custom components. Everything syncs as production code.
2

Design and prototype visually

Design with real components in a drag-and-drop editor with full design control. Then, build and share interactive prototypes that match your designs exactly.
3

AI understands your product

Generate designs from prompts or images with AI that learns from your theme, components, existing pages, and system prompt. The more you design, the smarter Subframe gets.
4

Hand-off code, not mockups

Components sync via CLI. Pages export as copyable React code or using an MCP server. Subframe generates code programmatically without the use of AI, and you own all the code locally.