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)	✅	❌		GitHub · npm · Docs
lmee/A2UI-Android	Android (Compose)	✅	❌		GitHub
sivamrudram-eng/a2ui-react-native	React Native	✅	❌		GitHub
zhama/a2ui	React (Web)	✅	❌	—	npm
jem-computer/A2UI-react	React (Web)	✅	❌		GitHub
BBC6BAE9/a2ui-swift	Apple (iOS, iPadOS, macOS, tvOS, watchOS, visionOS)	✅	✅		GitHub
TanXudong-Vivo/A2UI-Android-Renderer	Android (Jetpack Compose)	❌	✅		GitHub
a2ui-vue	Vue (Web)	✅	✅		GitHub · npm · Docs
AGenUI/AGenUI	iOS, Android, HarmonyOS	❌	✅		GitHub · Official Website
lynx-family/lynx-stack (@lynx-js/genui/a2ui)	Lynx (Mobile, Web, Desktop)	❌	✅		GitHub · npm · Docs

Notable Mentions

These projects are early-stage or experimental:

• xpert-ai/a2ui-react (@xpert-ai/a2ui-react) — React renderer with ShadCN UI components (v0.0.1, published Jan 2026).
• josh-english-2k18/a2ui-3d-renderer — Experimental Three.js/WebGL 3D renderer for A2UI (~2 stars).
• AINative-Studio/ai-kit-a2ui — React + ShadCN renderer for the AIKit framework (~2 stars).

Related Projects

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

Ecosystem Utilities

• @a2ui/markdown-it — Enables markdown rendering in the Text widgets of all renderers.

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 basic A2UI components with dual v0.8 + v0.9 protocol support, includes JSONL streaming, and uses the Observation framework for reactivity.

TanXudong-Vivo/A2UI-Android-Renderer is a modular Android renderer built with Jetpack Compose and Material 3, and is the first Android implementation to support the A2UI v0.9 protocol. It covers 13 fully implemented components (including Image loading via Coil), streaming rendering from LLM token streams, data binding with path expressions and formatDate, and a pluggable Custom Catalog for registering additional component types. The demo app includes a live connection to the official restaurant_finder ADK agent.

AGenUI/AGenUI is a cross-platform native renderer for A2UI v0.9, supporting iOS, Android, and HarmonyOS through a shared C++ core. It is designed for high performance, extensibility, and cross-platform consistency. AGenUI fully implements A2UI v0.9 and provides runtime APIs for extending UI components and function calls. It also introduces a custom Catalog that extends the Basic Catalog with Table, Carousel, Web, RichText, and a Styles property for richer appearance and layout control, while staying aligned with A2UI’s extensible Catalog model. See the component demo, the corresponding open-source A2UI Generation Skill, and learn more on GitHub.

lynx-family/lynx-stack (@lynx-js/genui/a2ui) provides the ReactLynx renderer for A2UI v0.9. It consumes validated server-to-client A2UI messages through a MessageStore, renders approved ReactLynx components from caller-supplied catalogs, and forwards generated UI actions through onAction. The published @lynx-js/genui package exposes the A2UI renderer via the a2ui subpath, while the GenUI CLI supports build-time catalog artifact and A2UI system prompt generation.

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 a2ui-project/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 a2ui-project/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.