---
description: Review of A2UI Software: system overview, features, price and cost information. Get free demos and compare to similar programs.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/software_advice/og_logo-55146305bbe7b450bea05c18e9be9c9a.png
title: A2UI | Reviews, Pricing & Demos - SoftwareAdvice GB
---

Breadcrumb: [Home](/) > [AI App Builder](/directory/5240/ai-app-builder/software) > [A2UI](/software/655595/A2UI)

# A2UI

Canonical: https://www.softwareadvice.co.uk/software/655595/A2UI

> A2UI is a declarative UI protocol that helps developers and enterprise teams build agent-driven applications across web, mobile, and desktop platforms. It is open source under Apache 2.0 and self-hosted or integrated directly into existing applications, with no proprietary cloud hosting required. It runs over SSE, WebSockets, A2A, and AG-UI transports.

Core features include a JSON-based streaming protocol, a flat component model for representing UI structures, and an extensible component catalog system defined via JSON Schema. Renderer support covers Angular, Flutter, Lit, React, and Markdown. A visual Composer editor lets teams generate A2UI JSON without any installation. A Python agent SDK with ADK extension is also available.

Agents send declarative component descriptions rather than executable code, which removes the security risks associated with HTML and JavaScript iframe approaches. Progressive rendering delivers interfaces incrementally as agents stream output. Client applications control all styling and theming, keeping brand presentation consistent across surfaces.

A2UI suits enterprise workflow automation, AI application development, and multi-agent system development. Support is available through the open source community, project documentation, and contributions from Google and CopilotKit.
> 
> Verdict: Rated \*\*\*\* by 0 users. Top-rated for **Overall Quality**.

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## About the vendor

- **Company**: A2UI

## Commercial Context

- **Target Audience**: Self Employed, 2–10, 11–50, 51–200, 201–500, 501–1,000, 1,001–5,000, 1,001–5,000, 1,001–5,000, 5,001–10,000, 5,001–10,000, 5,001–10,000, 10,000+, 10,000+, 10,000+
- **Available Countries**: United States

## Features

- Conversational App Iteration
- Data & API Integration
- Full-Stack Output
- Prompt-to-App Generation
- Use Case Templates

## Support Options

- FAQs/Forum
- Knowledge Base

## Category

- [AI App Builder](https://www.softwareadvice.co.uk/directory/5240/ai-app-builder/software)

## Links

- [View on SoftwareAdvice](https://www.softwareadvice.co.uk/software/655595/A2UI)

## This page is available in the following languages

| Locale | URL |
| en | <https://www.softwareadvice.com/product/655595-A2UI/> |
| en-AU | <https://www.softwareadvice.com.au/software/655595/A2UI> |
| en-GB | <https://www.softwareadvice.co.uk/software/655595/A2UI> |
| en-IE | <https://www.softwareadvice.ie/software/655595/A2UI> |
| en-NZ | <https://www.softwareadvice.co.nz/software/655595/A2UI> |

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