Stitch is an experimental AI-powered design tool from Google Labs that transforms text prompts and visual inputs into complete user interface designs. Built on Gemini 2.5 Pro and Gemini 2.5 Flash models, the platform enables designers, developers, and product teams to rapidly prototype mobile and web application interfaces without starting from scratch. Users can describe their interface concepts in natural language or upload sketches and wireframes, and Stitch generates structured UI layouts with professional design elements.

The tool provides two operational modes to accommodate different workflow requirements. Standard Mode uses Gemini 2.5 Flash for quick design generation with up to 350 generations monthly, while Experimental Mode leverages Gemini 2.5 Pro for higher-fidelity output with up to 50 generations monthly and supports image inputs for sketch-to-design conversion. Stitch generates clean, production-ready HTML and CSS code that can be exported directly or transferred seamlessly to Figma through a one-click integration.

Stitch includes customization controls for themes, fonts, accent colors, and border radius, allowing users to maintain visual consistency across generated designs. The platform supports iterative refinement through interactive chat functionality, enabling users to modify and enhance designs through conversational prompts. Recent updates introduced prototype functionality, allowing designers to connect multiple screens and create interactive user flows beyond static layouts. Stitch serves startup teams creating MVPs, designers exploring multiple concepts rapidly, and developers seeking to bridge the gap between design ideation and implementation.