At its I/O 2025 developer conference, Google introduced Stitch AI, a new AI-powered tool designed to streamline front-end development for web and mobile apps. The tool allows users to generate UI components and code — including HTML and CSS — using simple text prompts or even images.
Built atop Google’s Gemini 2.5 Pro and Gemini 2.5 Flash models, the Google Stitch AI UI design tool empowers users to quickly design responsive interfaces and then export the results for editing in Figma or further refinement in an IDE. The tool supports direct customization of design elements and is intended to serve as a starting point for app interface development, rather than a full design suite.
In a live demo, Google product manager Kathy Korevec showcased Stitch creating a mobile app UI for book lovers and a web dashboard for beekeepers. “Stitch is where you come to get your initial iteration done,” she said. “Then you can keep building from there. The goal is to make that next level of software design thinking more accessible.”
Google Stitch and Jules Bring AI to the Developer Workflow
Stitch enters the growing space of “vibe coding” — a term referring to programming assisted by code-generating AI. Google is now competing with tools from Anysphere’s Cursor, Cognition, Windsurf, and recently, OpenAI’s Codex and Microsoft’s upgraded GitHub Copilot, all of which aim to accelerate software development with AI.
While Stitch isn’t as broad in scope as some of its rivals, it does offer meaningful customization, including future updates that will allow design edits via annotated screenshots. Users will be able to snap a picture of a UI element and specify visual changes directly on it — making the prototyping process more intuitive.
Alongside Stitch, Google has also expanded public access to Jules, its AI coding assistant. Jules, currently in beta, can help developers with tasks like bug fixes, codebase upgrades, pull requests, and backlog items. In another demo, Korevec showed Jules upgrading a Node.js 16 website to version 22. After cloning the repo into a clean virtual environment, Jules proposed a step-by-step upgrade plan, executed the changes, and then confirmed the site was still functional.
Jules currently runs on Gemini 2.5 Pro, but future versions will allow developers to switch between different Gemini models based on their needs.
Together, Stitch and Jules signal Google’s deepening push into AI-enhanced software development, giving designers and developers faster tools to ideate, implement, and iterate.
