Wuwei

Wuwei is an open standard that represents user interfaces as data to separate them from model providers.

Wuwei introduces Page.json, an open standard for representing user interfaces as data including content, layout, and interactions. It standardizes how pages are described across applications and platforms, preventing interfaces from being coupled with specific model providers. A page is represented as a JSON tree where each node describes a component, its content, and its layout. The format is portable, editable by humans and AI agents, declarative, and inspectable. It turns interfaces into first-class digital artifacts that you can inspect, edit, and reuse outside of application code. You can view the full specification on GitHub.

Wuwei at a glance

Best for: Software engineer, Designer
Runs on: Web
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: wuwei.us

Key features

Represents user interfaces as data
Standardizes page descriptions across platforms
Structures pages as JSON trees
Editable by humans and AI agents
Declarative and inspectable format

Use it for

Describe user interfaces as data
Render UIs across web and mobile views
Inspect and edit UI documents

Alternatives to Wuwei

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OpenUI Standard — Renders generative UI three times faster with sixty-seven percent fewer tokens than JSON.
OpenUI — Describe a UI, see it live, then export React or Svelte
Woml — Combine readable HTML-inspired markup with JavaScript logic and managed durable execution.
uithub — Provides immediate full repository context for LLMs by changing one URL letter.
Domscribe — Connects UI elements directly to source code for precise AI-assisted edits.
Pristine — Polishes web UI to a high standard using AI agent commands.
LangChain4j — Integrates LLMs and vector stores directly into Java applications.
OpenRouter — Access over 500 models and 80 providers through one unified API.
Whiteboard by /dev/fast — Review software architectural changes, agent trajectories, and diffs in one place.
Danwo — Test web and mobile apps with UI interactions and backend emulations.
UI Skills — Curated skills for building polished frontend interfaces.

All Wuwei alternatives