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Ecosystem Renderers

Community and third-party A2UI renderer implementations.

!!! note These renderers are maintained by their respective authors, not the A2UI team. Check each project for compatibility, version support, and maintenance status.

Community Renderers

Renderer Platform v0.8 v0.9 Activity Links
@a2ui-sdk/react React (Web) ✅ ❌ Stars Last commit GitHub · npm · Docs
A2UI-Android Android (Compose) ✅ ❌ Stars Last commit GitHub
a2ui-react-native React Native ✅ ❌ Stars Last commit GitHub
@zhama/a2ui React (Web) ✅ ❌ — npm
A2UI-react React (Web) ✅ ❌ Stars Last commit GitHub
a2ui-swiftui SwiftUI (iOS, iPadOS, macOS, tvOS, watchOS, visionOS) ✅ ✅ Stars Last commit GitHub
a2ui-oat Web (vanilla JS, no framework) ❌ ✅ Stars Last commit GitHub · npm · Demo

Notable Mentions

These projects are early-stage or experimental:

  • @xpert-ai/a2ui-react — React renderer with ShadCN UI components (v0.0.1, published Jan 2026)
  • a2ui-3d-renderer — Experimental Three.js/WebGL 3D renderer for A2UI (~2 stars)
  • ai-kit-a2ui — React + ShadCN renderer for the AIKit framework (~2 stars)

Highlights

@a2ui-sdk/react is currently the most mature community React renderer, with 11 published versions, Radix UI primitives, Tailwind CSS styling, and a dedicated docs site. It was announced on the A2UI discussions.

A2UI-Android fills an important gap — it's the only community Jetpack Compose renderer, covering Android 5.0+ with 20+ components, data binding, and accessibility support.

a2ui-react-native is the only React Native renderer, enabling A2UI on iOS and Android via a single codebase.

a2ui-swiftui is a native SwiftUI renderer supporting iOS, macOS, visionOS, watchOS, and tvOS. It covers all 18 standard A2UI components with dual v0.8 + v0.9 protocol support, includes JSONL streaming, and uses the Observation framework for reactivity.

a2ui-oat is the first framework-free web renderer, built on Oat CSS semantic styling. It maps 37 catalog components (all 16 basic + 21 extensions) to semantic HTML with zero framework dependencies (~13KB total client footprint). It includes 22 registered client-side functions (pagination, SSE streaming, WebSocket, routing, formatting, validation), a custom catalog with theme support, and a dual-mode architecture that also supports direct HTML rendering for trusted agents. v0.9 only, with @a2ui/web-lib integration via registerWithWebLib().

Python / PyPI

No credible A2UI renderer packages were found on PyPI as of March 2026. A2UI renderers are client-side (UI) libraries, so the ecosystem is naturally focused on JavaScript/TypeScript and native mobile frameworks.

Submitting a Renderer

Built an A2UI renderer? We'd love to list it here.

How to submit

  1. Fork the google/A2UI repository
  2. Edit this file (docs/ecosystem/renderers.md) — add a row to the Community Renderers table with your renderer's name, platform, npm package (if any), version support, and a link to the source
  3. Open a PR against google/A2UI with a short description of your renderer
  4. Post in GitHub Discussions — let the community know what you built! A short demo video goes a long way.

Need inspiration? Browse the community samples in the repo — these cover Angular, Lit, and ADK-based agents and are a good starting point.

What makes a good community renderer?

A listing is more likely to be accepted and used if it:

  • Has published source code (open-source preferred, MIT or Apache 2.0)
  • Clearly states which A2UI spec version it supports (v0.8, v0.9, or both)
  • Covers core components: text, buttons, inputs, and basic layout
  • Includes a README with install instructions and a minimal usage example
  • Is actively maintained — flag it as archived if you're no longer supporting it

Community renderers don't need to be production-ready to be listed — experimental and early-stage projects are welcome in the Notable Mentions section.