Google debuts Stitch, an AI tool that helps developers design apps faster with smart UI suggestions and layout automation
Google introduced Stitch at the Google I/O 2025 developer conference, an AI-powered utility that can assist in the creation of web and mobile app front ends by generating the requisite UI elements and code.
Stitch can be instructed to generate app UIs using a few words or an image, and it will provide HTML and CSS markup for the designs it generates. Users can select either the Gemini 2.5 Pro or Gemini 2.5 Flash AI models from Google to enable Stitch’s code and interface ideation.
Stitch’s arrival coincides with the increasing prominence of vibe coding, which involves programming with AI models that generate code. Cognition, Windsurf, and Anysphere, which manufacture cursors, are numerous substantial technology firms pursuing the expanding market.
Codex, a novel assistive coding service, was introduced by OpenAI last week. Microsoft implemented a sequence of modifications to its GitHub Copilot coding assistant yesterday during the Build 2025 launch.
Compared to other vibe coding products, Stitch is somewhat restricted in its capabilities; however, there are many customization options. The tool can directly export to Figma and expose code for further refinement and development in an IDE. Additionally, Stitch allows users to customize any of the app design components it generates.
Kathy Korevec, a Google product manager, demonstrated two projects developed using Stitch during a Demo with TechCrunch: a responsive mobile UI design for a bookworm app and a web interface for beekeeping.
“[Stitch is] where you can come and get your initial iteration done, and then you can keep going from there,” said Korevec. “What we want to do is make it super, super easy and approachable for people to do that next level of design thinking or that next level of software building for them.”
Korevec stated that Google intends to implement a feature shortly following I/O that will enable users to modify their UI designs by capturing screenshots of the object they wish to alter and annotating them with the desired modifications. She further stated that although Stitch is reasonably potent, it is not intended to serve as a comprehensive design platform, such as Adobe XD or Figma.
Google has increased access to Jules, its AI agent designed to assist developers in resolving problems in their code, in addition to Stitch. Currently, in public beta, the tool assists developers in comprehending intricate code, generating pull requests on GitHub, and managing specific backlog items and programming duties.
Korevec demonstrated to Jules in a distinct demonstration how to upgrade a website from the deprecated Node.js version 16 to Node.js 22. Jules cloned the site’s codebase in a clean virtual machine and shared a “plan” for the upgrade, which Korevec was subsequently prompted to approve. Korevec requested that Jules confirm that the website was functioning correctly after the upgrade was finished, which Jules did.
Korevec informed TechCrunch that users can transition between various models in the future, even though Jules currently uses Gemini 2.5 Pro.
