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Full-stack AI

Build faster with AI. Ship AI-powered features.

One language, one stack, one repo

Vaadin gives AI assistants a simpler, more structured way to build web apps in Java.
Pragmatic and predictable

Vaadin makes AI-driven development more predictable, from code generation to verification.

Type safe and convention-driven

Java’s strong typing and predictable patterns make AI-generated code understandable and easier to maintain.

Shared context

UI, business logic, and data stay in one stack, so AI can understand how the application works end to end.

Components and composable views

UIs are composed of ready-made components, resulting in faster time-to-market and coherent user experience.

One codebase, one PR

Full-stack changes make reviewing and verification easier since UI, backend logic, and security live together.

Secure browser-server communication

Vaadin handles backend-frontend communication, reducing custom glue and lowering the risk of accidental exposure.

Plugs into your coding assistant

The Vaadin MCP server and Claude plugin connects coding assistants to current Vaadin docs, APIs, and patterns. Ask your assistant to build a filtered grid, connect a form to a backend service, or follow Vaadin patterns, and it can work from framework context instead of generic assumptions.

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Edit visually. Verify instantly.

Visual editing in the running app, plus tests that run in milliseconds. Both built for AI-assisted development, and both for free with Vaadin.
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Iterate visually with Vaadin Copilot
Vaadin Copilot brings visual editing into AI-assisted development. When AI gets you close, use Copilot in the running app to create views with drag and drop, adjust layouts and styling visually in the running app, or turn Figma designs into working views.
GET VAADIN COPILOT
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Verify instantly
Run browserless UI tests directly in the JVM, without a browser or WebDriver. Verify changes fast and keep the AI feedback loop tight. Browserless tests are typically 100× faster than end-to-end tests and run in 5–60 milliseconds.
READ THE GUIDE

Build AI into your apps

Add AI features grounded in your data and connected to real business logic. Build on ready-made UI components, with prompts, logic, and security staying in Java. Build AI features with Spring AI, LangChain4j, or your existing LLM stack. Streaming, history, attachments, and tool calling are handled for you.

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Components built for AI

Skip building chat UIs, prompt inputs, and streaming orchestration from scratch. Vaadin ships the components your AI features need.
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AIOrchestrator
Wires your UI to your Java AI backend. Handles streaming responses, conversation history, file attachments, and tool calling.
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MessageList
Displays the conversation, with streamed tokens rendering in real time.

Modernization for the AI era

Modernize without the rewrite

AI is not only changing how new apps are built. It is also changing how existing systems get modernized. Vaadin already helps teams modernize legacy Vaadin and Swing applications with automation that considerably reduces manual effort, lowers the risk of big-bang rewrites, and makes incremental modernization practical.

 

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From AI-assisted development to AI-powered apps

For 25 years, Vaadin has helped Java teams build modern web applications. Now the same framework is ready for the AI era — whether you're building a new application with AI assistance, adding AI-powered features to an existing one, or modernizing a legacy system.

GET STARTED WITH VAADIN