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Prototyper UI

Components built for humans first, and for agents to use correctly.

The system ships with a typed component library so generated products start from solid primitives instead of ad-hoc markup. Accessibility, tokens, and composition rules are already present.

56+ accessible componentsBase UI foundationsTyped compositionToken-aware design
Browse component docsStart building for free

Action system

Buttons, badges, and feedback states

Ready

Composed surfaces

Cards, sections, and product shells

Component rhythm in practice

Dense enough to feel professional, restrained enough to stay readable at product scale.

Workspace shell
Tokens and structure already applied
typed
Sidebar
Inspector
Editor + Preview
Why it matters
Accessible states stay consistent.
Generated output keeps the same visual language.
Agents can compose real UI instead of approximating it.

Accessible by default

Focus management, keyboard behavior, and interaction states are handled as first-class product quality.

Typed for generation

Predictable APIs make the library easier for agents to use correctly without brittle one-off wrappers.

One visual language

Tokens, spacing, and motion stay consistent across every interface the system produces.

Generative UI

Agents emit specs. You get real components.

Every UI the agent produces is a typed Compose spec that the app renders with the exact same primitives your engineers ship. Flip any card to see the spec the model wrote — identical to what lands in your codebase.

signup-form.spec.json

Create account

Start your free trial — no card required.

pricing-card.spec.json

Pro

For growing design teams

$24/mo

✓ Unlimited workspaces

✓ Priority agent capacity

✓ Shared team canvas

weekly-active.spec.json

Weekly active

Last 7 days

24,815

Weekly goal
x

68% of weekly goal reached. Up 12% vs last week.

deploy-success.spec.json
Typed spec outputReal Prototyper UIToken-awareAccessible primitives