Google Unveils Stitch: A Game-Changer for App Design

At the recent Google I/O 2025 developer conference, tech enthusiasts were treated to the unveiling of Stitch, an innovative AI-powered tool designed to streamline the creation of web and mobile app front ends. With a focus on generating user interface (UI) elements and code, Stitch promises to transform how developers and designers approach app creation.

What is Stitch and How Does it Work?

Stitch offers a unique way for users to create application UIs simply by entering a few words or uploading an image. In response, the tool generates HTML and CSS markup for the designs, making app development more accessible to a broader audience. Users can choose from Google’s advanced AI models, Gemini 2.5 Pro and Gemini 2.5 Flash, to power Stitch’s design and coding capabilities.

As the trend of vibe coding — where programmers utilize AI models to generate code — continues to gain traction, Stitch enters a competitive landscape. Other tech startups, like Cursor, Cognition, and Windsurf, are also capitalizing on this emerging market. Recently, OpenAI launched its own coding assistant, Codex, and Microsoft unveiled several updates to its GitHub Copilot, underscoring the growing demand for assistive coding tools.

Customization and Usability Features

While Stitch may have limitations compared to some advanced coding products, it boasts a variety of customization options. Users can export their designs directly to Figma, a popular interface design tool, and modify code in an Integrated Development Environment (IDE). Furthermore, Stitch allows for fine-tuning of any generated app design elements, empowering designers to refine their projects thoroughly.

In a demonstration with TechCrunch, Google product manager Kathy Korevec showcased two projects created using Stitch: a responsive mobile interface tailored for avid readers and a web dashboard designed for beekeepers. Korevec remarked, “[Stitch is] where you can come and get your initial iteration done, and then you can keep going from there.” This illustrates Stitch’s aim to simplify the design process and elevate the standards of app development.

Future Enhancements

Looking ahead, Google plans to implement a feature enabling users to modify their UI designs by taking screenshots of elements they want to adjust, along with annotated changes. While Korevec emphasized that Stitch is a powerful tool, she clarified that it isn’t intended to replace comprehensive design platforms like Figma or Adobe XD. Instead, Stitch serves as a complementary tool, helping users lay the groundwork for their projects.

Jules: Another AI Tool from Google

Alongside Stitch, Google has also expanded access to Jules, its AI agent focused on assisting developers in fixing code bugs. Currently in public beta, Jules aids in navigating complex code, creating pull requests on GitHub, and handling various programming tasks. In another demo, Korevec illustrated Jules’ capabilities by showing it upgrading a website from the deprecated Node.js version 16 to Node.js 22.

The demonstration highlighted Jules’ effectiveness, as it successfully cloned the website’s codebase and shared a detailed upgrade plan, which Korevec subsequently approved. Jules currently utilizes the Gemini 2.5 Pro model, but users will have the flexibility to switch between different AI models as needed.

Conclusion

As of now, Google’s Stitch and Jules represent significant steps forward in the realm of AI-assisted coding and design. While Stitch might not be a full-fledged design platform, its initial capabilities and future enhancements hold great promise for developers and designers alike. With the accelerated pace of innovation in vibe coding and AI tools, the landscape of app development is undoubtedly evolving, making it easier for creators to bring their ideas to life. As we look to the future, it will be fascinating to see how these tools shape the processes behind application design and development.

For more insights on emerging technologies in app design, check out our articles on AI in Design and Web Development Trends.