Google Stitch and AI Studio: Free Tools That Replace Figma and Replit
Google dropped two major updates in the same week. Stitch, their AI design tool, got voice prompts, one-click theming, and a markdown export that connects directly to coding agents. AI Studio, their developer playground, became a full-stack coding environment with Firebase database and authentication built in. Both are free.
These are not experimental demos. Stitch already caused Figma stock to dip 8% after the announcement. AI Studio is absorbing Firebase Studio entirely. Google is making a clear play: own both the design and the development layer, and give them away to lock developers into the ecosystem.
What Google Stitch does now
Stitch generates high-fidelity UI designs from text prompts, voice commands, or reference images. You describe what you want — a food delivery app with a dark theme, a dashboard for tracking fitness goals — and it produces up to five connected screens with working navigation. The entire process takes minutes, not hours.
The March 2026 update added three features that matter. Voice Canvas lets you talk to the design agent like a colleague. You say what you want changed, it asks clarifying questions, then updates the design live. One-click theming applies consistent colors, fonts, and spacing across every screen in a project without touching CSS. And the new DESIGN.md export generates a complete design system document — seed color, palette, typography scale, component rules — formatted for coding agents like Claude Code and Cursor.
What Google AI Studio does now
AI Studio went from a Gemini API playground to a browser-based development environment that builds complete applications. The upgrade integrates Antigravity, Google's AI coding agent, directly into the browser. It uses Gemini 3.1 Pro for initial builds and Gemini Flash for faster iterations.
The key differentiator is Firebase integration. When your app needs a database, AI Studio provisions Cloud Firestore automatically. When it needs user login, it sets up Firebase Authentication with Google Sign-In. No configuration, no separate console, no third-party services. The agent detects what your app needs and wires it up. It also runs server-side Node.js, installs npm packages, and manages API keys through a built-in secrets manager.
Who should use which tool
Use Stitch when you need designs, not code. Product managers exploring ideas, founders validating concepts, designers generating first drafts. Stitch outputs Figma files and React code, so the handoff to developers is clean. The 350 free generations per month in Standard Mode is enough for most small teams.
Use AI Studio when you need a working application. The sweet spot is internal tools, prototypes, and MVPs where you need a database and user accounts but do not want to configure infrastructure. The multiplayer geolocation guessing game Google demoed — with real-time data, Google Maps integration, and user sessions — was built entirely inside AI Studio without writing a single line of backend configuration.
How they compare to paid alternatives
Figma costs between 15 and 45 dollars per month and requires design expertise. Stitch is free and needs zero design skills, but it generates first drafts, not production-ready design systems. The practical workflow is to generate with Stitch, then refine in Figma. Since Stitch exports to Figma format, this is already seamless.
Replit, Bolt, and Lovable charge for backend features and deployment. AI Studio is free for prototyping because Google wants you on Firebase, where production usage drives revenue. The trade-off is lock-in: your database is Firestore, your auth is Firebase, your hosting will eventually be Google Cloud. If that stack works for your project, the zero-cost entry is hard to beat.
What to watch for
Stitch has a limitation worth knowing: in Experimental Mode, where you upload reference images for style guidance, Figma export is disabled. You get image-guided design or Figma export, not both. Google will likely fix this, but it matters if your workflow depends on both features.
AI Studio does not yet support production deployment directly. You can share apps for testing via links, but deploying to a custom domain requires manual setup. Firebase Studio, which did support deployment, is being sunset by March 2027. Google will need to close this gap before AI Studio fully replaces it.