By the end of this guide you will have a multi-screen UI mockup or wireframe that you can edit, share for feedback and, if you want, hand to a developer. The job is done by an AI UI design generator: you describe the product (or upload a sketch or screenshot), the tool draws the screens, and you refine them by hand or by chat.
If you want to design a UI mockup with AI, the real decision is what you need at the end: a quick wireframe to test an idea, a polished design in Figma, or a clickable prototype backed by code. This guide covers each route and compares six tools from our Design category.
Key takeaways
- Write a short brief covering layout, look and content, give it to an AI UI tool, then edit the generated screens and share a link for review.
- The main decision is the output you need: a wireframe, an editable Figma file, front-end code or a working prototype.
- Free plans are small. For example, Uizard's Free plan allows 3 AI generations per month, and Banani's Free plan runs on 12 monthly credits plus 3 daily.
- AI gives you a first draft of the interface. A designer or product owner still needs to check flows, accessibility and brand fit before it ships.
What you need before you start
- A one-paragraph brief. Who the product is for, the main screens, and the feeling you want (for example trustworthy or playful).
- Optional inputs. A hand-drawn sketch, a screenshot of an existing screen, a logo and brand colours, or a product requirements document if you have one.
- An account. Most tools here run in the browser and need an account. Figma AI works inside Figma, so you need a Figma account.
- Time. A first mockup takes under an hour. Polishing a full flow takes longer.
- Difficulty. Easy for text-to-screen tools, moderate if you want to connect design to code.
- Permission. If you upload a client's screenshots or unreleased designs, check that you are allowed to share them with a third-party service.
Which kind of AI tool fits this job
Pick by the output you need rather than by feature lists.
Prompt-to-screens generators. Uizard is a browser-based tool whose Autodesigner generates multi-screen, editable designs from a text prompt. Its Screenshot Scanner and Wireframe Scanner convert existing screenshots or hand-drawn sketches into digital mockups. Banani builds editable multi-screen designs for mobile and web from a prompt, an image, a screenshot, a Figma link or a product requirements document, and shows variants. Stitch with Google turns prompts, rough sketches and mood descriptions into screens, and outputs editable Figma files and HTML and CSS code.
AI inside a design tool you may already use. Figma AI is the set of AI features built into Figma, FigJam, Slides and Make. A Figma agent can generate and remix design directions, and Figma Make turns a prompt or an existing design into a prototype or web app. Choose this if your team already works in Figma files.
Chat-driven wireframes on a whiteboard. Whimsical AI is the agent inside the Whimsical workspace. It can draw wireframes, flowcharts and mind maps from a chat description, and turn an uploaded screenshot or mockup into a diagram. This suits early, low-fidelity thinking.
Design-to-code prototypes. Weave is a Figma plugin and service that converts screens built in your design system into a working code prototype. Setup begins with a component library built together with your engineering team, so it fits product teams rather than solo makers.
Step 1: Write a short design brief
You end this step with a brief that a tool can turn into screens.
- List the three to five screens you need (for example sign-up, dashboard, settings).
- Describe the layout of each screen in a sentence.
- Describe the look in adjectives, such as minimal, playful or industrial.
- Describe the content: the real headings, buttons and sample data you expect to see.
- Gather any logo, brand colours or reference screenshots.
Stitch with Google suggests writing prompts in three parts: the layout, the aesthetic and the content of the screen. That structure works for any tool.
Check it worked by reading the brief aloud and confirming a colleague could sketch the screens from it.
Step 2: Pick a tool for the output you need
You end this step with one tool chosen and an account ready.
- Decide the end product: wireframe, Figma file, code or prototype.
- If you need Figma files, look at Stitch with Google (editable Figma files as an output), Banani (Figma export on paid plans) and Figma AI.
- If you start from a sketch or screenshot, Uizard, Stitch with Google, Banani and Whimsical AI all list that input.
- Check the free plan against your needs using the comparison table below.
Check it worked by confirming the tool accepts the input you have and exports the format you need.
Step 3: Generate a first set of screens
The goal is a rough but complete draft of every screen.
- Create a new project and paste your brief, or upload your sketch or screenshot.
- Ask for all screens at once if the tool supports multi-screen generation, as Uizard's Autodesigner and Banani do.
- If the tool asks clarifying questions, answer them. Banani's agent can ask when a prompt is vague.
- Generate more than one variant if the tool offers it, then keep the closest one.
Check it worked by clicking through the screens and confirming each one from your list exists.
Step 4: Refine layout, copy and style
Treat the output as a draft and bring it closer to your intent.
- Ask for changes in plain language, such as a larger button or a search bar in the header. Stitch with Google and Banani both accept chat-style edits.
- Replace placeholder text with real copy. Uizard has a Text Assistant that replaces lorem ipsum.
- Add your logo and brand colours. Banani lets you attach logos and brand assets, and Uizard has a Theme Generator for brand kits.
- Use the drag-and-drop editor for pixel-level fixes, where the tool has one.
Check it worked by comparing each screen with your brief and noting what still differs.
Step 5: Link the screens into a flow
A set of screens becomes more useful when someone can click through it.
- Connect buttons and links between screens to mirror the user journey.
- In Uizard, use its interactive prototypes. In Figma, Figma Make can turn a prompt or existing design into a prototype.
- If the flow is still unclear, sketch it first as a diagram. Whimsical AI can generate flowcharts and sequence diagrams from a description.
Check it worked by clicking through the main journey from the first screen to the last without hitting a dead end.
Step 6: Share it and collect feedback
Get other people's eyes on it before you invest more time.
- Share a project link. Uizard and Banani both list shareable links, and Uizard adds real-time collaboration and comments.
- Ask reviewers three specific questions, such as what they expect each screen to do.
- Note changes, then apply them in the tool.
Check it worked by receiving feedback on at least one screen from someone who did not write the brief.
Step 7: Export or hand off
Save the design in the format your next step needs.
- For a design team, export to Figma. Stitch with Google outputs editable Figma files, and Banani can copy designs into Figma as editable layers on a paid plan.
- For developers, export code. Uizard hands off CSS or React code, while Stitch with Google and Banani (on a paid plan) produce HTML and CSS. Stitch notes its code is front-end HTML and CSS rather than full applications.
- For a production prototype, a tool such as Weave converts Figma screens into version-controlled code prototypes.
- Keep a copy of the source project in your own storage.
Check it worked by opening the exported file or code in the place where it will be used.
Tools for this job compared
| Tool | Good fit for | Pricing | Stated limits |
|---|---|---|---|
| Uizard | Web-based mockups, sketch and screenshot scanning, prototypes | Freemium, paid from $12/mo (checked 24 Oct 2026) | Free: 2 projects, 5 screens per project, 3 AI generations per month; free exports at 1x resolution |
| Stitch with Google | Prompt or sketch to screens, Figma files and HTML and CSS | Pricing unknown | Pricing and usage limits not published; code output is front-end HTML and CSS only |
| Figma AI | Teams already designing in Figma; web and API | Freemium, paid from $3/mo (checked 24 Oct 2026) | Starter: 150 credits per day up to 500 per month; seat credits do not roll over; shaders and some Make features in beta |
| Banani | Multi-screen app and web designs from prompts, images or PRDs | Freemium, paid from $12/mo (checked 24 Oct 2026) | Generations use credits; Figma and code export need a paid plan |
| Weave | Product teams turning Figma designs into code prototypes | Pricing unknown | Pricing not published; setup starts with a component library built with your engineers |
| Whimsical AI | Low-fidelity wireframes and diagrams on web, macOS and Windows | Freemium, paid from $10/mo (checked 24 Oct 2026) | 10 AI credits as a one-time allowance; extra credits are bought; complex requests use more credits |
Prices and plan limits change, so confirm the current terms on each vendor's site before you subscribe.
Common mistakes to avoid
- Prompting with one vague line. The tool fills the gaps with generic choices. Fix it by writing layout, look and content separately, as in Step 1.
- Choosing a tool before choosing the output. A wireframe tool will not give you a code-ready prototype. Fix it by deciding on Figma, code or prototype first.
- Burning the free allowance on the first try. Uizard's Free plan has 3 AI generations per month, and Whimsical AI gives 10 credits once. Fix it by finishing your brief and gathering inputs before you generate.
- Shipping generated code as is. Stitch with Google says its output is front-end HTML and CSS rather than full applications. Fix it by having a developer review and extend it.
- Skipping usability and accessibility checks. An attractive screen can still confuse users. Fix it by testing the flow with a real person before development starts.
How we put this together
This is an evidence-based guide built from each tool's listing in our directory, which is compiled from the vendor's own site and pricing page. It is not a review based on using the tools. We don't rank tools, and nobody paid to be included. Some outbound links may be affiliate links; see our disclosure.
Frequently asked questions
Is there a free way to design a UI mockup with AI?
Yes, within limits. Uizard has a Free plan with 2 projects and 3 AI generations a month, Banani has a Free plan with 12 monthly credits plus 3 daily, and Figma AI's Starter plan gives 150 credits a day up to 500 a month. Whimsical AI gives every account 10 free AI credits once. Stitch with Google does not publish pricing, so check its site.
Can AI turn a hand-drawn sketch into a UI design?
Yes. Uizard's Wireframe Scanner converts hand-drawn sketches into digital mockups, and Stitch with Google turns an uploaded sketch into a coded interface that follows the drawing. Expect to tidy the result by hand.
Can I get the mockup into Figma?
Several tools can. Stitch with Google lists editable Figma files as an output, and Banani can copy designs into Figma as editable layers, though Figma and code export need a paid Banani plan. Figma AI works inside Figma itself.
Do I need to code to turn a mockup into a prototype?
Not for a clickable prototype. Uizard and Figma Make build prototypes without code. Turning designs into shipped code is a separate step, where tools such as Weave work with your engineers and component library.
Can AI replace a UI designer?
AI speeds up the first draft, but it does not replace judgement about users, accessibility and brand. Treat generated screens as a starting point and have a designer or product owner review them before development.
Compare more options in our Design category. If you need to map the journey first, see How to create a flowchart or diagram with AI.
