Google Stitch designs the screens. UIPrompt plans the build.
Short answer: use Google Stitch to explore how screens could look, for free. Use UIPrompt when you have a codebase and a coding agent and need the plan it builds from: every page and its sections in order, exact copy, your brand files and the stack it must stick to, delivered to your repo or over MCP.
UIPrompt vs Google Stitch
| Topic | UIPrompt | Google Stitch |
|---|---|---|
| What it is | A planning tool: the UI plan your coding agent builds from. | An AI design tool from Google Labs: it generates screen designs. |
| What you get | A brief: every page, its sections in order, a prompt and exact copy per component, plus brand and stack. | Visual screens and their front-end code, which you can paste into Figma or export. |
| Starting point | Your existing GitHub repo (private ones too): pages, stack and design tokens are detected. | A prompt, a sketch or a screenshot. |
| Stack | Your declared framework, styling and component library, with Strict Stack mode so the agent only uses what you listed. | Its own generated code for the screens it designs. |
| Brand | A reusable brand kit read from your site: colors by role, fonts and the logo files themselves. | Design rules you can carry between projects in a DESIGN.md file. |
| Coding agents | MCP connector and a pull request with the brief, so Claude Code, Codex or Cursor builds in your repo; each page shows Built or Planned. | An MCP server that lets agents such as Claude Code, Cursor and Gemini CLI use Stitch designs. |
| Working as a team | Live editing on the plan; viewers are free and can connect their own agent. | Share and export designs to the tools your team uses. |
| Price | Free editor demo; paid plans for the connector and GitHub. | Free to use, with usage limits. |
Stitch is a Google Labs product and changes quickly. Check Stitch's own site for its current features and limits.
When Google Stitch is the better choice
- You're exploring what it should look like. Stitch is quick at generating visual directions from a prompt or a sketch. UIPrompt assumes you know roughly what each page needs.
- Your next step is Figma. If a designer will refine the screens, Stitch's paste to Figma fits that workflow. UIPrompt hands off to coding agents, not design files.
- There's no codebase yet. For a mockup or a pitch, a generated screen is enough. UIPrompt is most useful once there is a repo and an agent building in it.
- Budget is zero. Stitch is free to use. UIPrompt's editor demo is free, but connecting your agent needs a paid plan.
A good-looking screen is not the same as a build plan. Once an app has real pages, a brand and a team, your agent needs to know which pages exist, what goes on each in what order, the exact copy, and which libraries it may use. That is what UIPrompt keeps in one place.
How UIPrompt works
- Start a project, or import your GitHub repo (private ones too).
- Lay out each page from ready-made sections, or have your agent lay one out from a screenshot, with a prompt and exact copy per component.
- Apply your brand kit and declare your stack. Strict Stack mode keeps the agent to what you listed.
- Ship the brief to your repo as a pull request, or let your agent pull it through the UIPrompt connector.
- Your agent builds it. Each page shows Built or Planned from your repo.
Using Claude Code? See the Claude Code setup. Comparing builders? See UIPrompt vs v0.
Frequently asked questions
What is the best Google Stitch alternative for developers with a coding agent?
UIPrompt, if what you need is the build plan rather than the mockup. Stitch generates how screens look. UIPrompt plans every page of your app, with sections, exact copy, your brand and your stack, and the coding agent you already use builds it in your own repo.
How is UIPrompt different from Google Stitch?
Stitch is a design tool: you describe or sketch a screen and it designs it, then you take it to Figma or code. UIPrompt is a planning tool for an existing codebase: import your repo, lay out every page, lock your stack and brand, and hand the brief to Claude Code, Codex or Cursor as a pull request or over MCP.
Can I use Google Stitch and UIPrompt together?
Yes. Explore the look in Stitch, then plan the real pages in UIPrompt: through the UIPrompt connector your agent can lay out a page on the canvas from a screenshot of a Stitch design, with exact copy for you to review before it builds.
Both have an MCP server. What is the difference for my agent?
Stitch’s MCP server gives your agent designs to work from. UIPrompt’s gives it the plan for the whole app: which pages exist, their sections in order, the copy, the brand files, the stack it must stick to, and which pages are already built in your repo.
Is UIPrompt free like Stitch?
The UIPrompt editor demo is free with no signup. Connecting your agent and shipping briefs to GitHub are part of the paid plans, and teammates you invite as viewers are free.
Plan the UI. Your coding agent builds exactly that.
Plan every page once, set your brand, and let the agent you already use build the whole interface consistently.