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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.

TIP Looking for the official A2UI React renderer? See @a2ui/react — the core A2UI React renderer maintained by the A2UI team.

Community Renderers

Renderer Platform v0.8 v0.9 Activity Links
easyops-cn/a2ui-sdk (@a2ui-sdk/react) React (Web) ✅ ❌ Stars Last commit GitHub · npm · Docs
lmee/A2UI-Android Android (Compose) ✅ ❌ Stars Last commit GitHub
sivamrudram-eng/a2ui-react-native React Native ✅ ❌ Stars Last commit GitHub
zhama/a2ui React (Web) ✅ ❌ — npm
jem-computer/A2UI-react React (Web) ✅ ❌ Stars Last commit GitHub
BBC6BAE9/a2ui-swift Apple (iOS, iPadOS, macOS, tvOS, watchOS, visionOS) ✅ ✅ Stars Last commit GitHub

Notable Mentions

These projects are early-stage or experimental:

These projects are not directly A2UI renderers but are closely related and do support A2UI:

Project Platform Description Links
vercel-labs/json-render (@json-render/*) React, Vue, Svelte, Solid, React Native Generative UI framework by Vercel — uses its own JSON schema (not A2UI protocol) with Zod-based component catalogs. Supports streaming, 36 pre-built shadcn/ui components, and cross-platform rendering. GitHub · npm · Docs

Highlights

easyops-cn/a2ui-sdk (@a2ui-sdk/react) is the most fully-featured 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. For the official A2UI React renderer, see @a2ui/react.

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

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

BBC6BAE9/a2ui-swift (formerly 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.

Submitting a Renderer

If you have built an A2UI renderer, submit it to be listed here.

How to submit

To submit a renderer, follow these steps:

  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 meets the following criteria:

  • 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 the basic components from the other A2UI renderers: text, buttons, inputs, basic layout components, etc.
  • 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.