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OpenUI

A toolkit that lets AI models answer with charts, forms and tables instead of only text.

New this week

What it does

OpenUI helps developers build apps where an AI model can reply with real interface pieces, such as charts, forms, tables and layouts, rather than plain text. This idea is called generative UI.

It uses its own compact language, OpenUI Lang, which the AI writes and the app turns into screen elements as the answer streams in. Its makers say it uses far fewer tokens (chunks of text the AI processes) than JSON.

It works with several popular web frameworks and includes ready-made chat screens and component libraries.

Who it's for

Web developers adding AI chat or assistant features to their products.

Can I use it without coding?

Developers only. It is a set of programming packages for building web apps. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
Computer
An ordinary computer is fine
API key
Not needed

Try it

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page. Copies with similar names exist for many popular projects.
  • License (MIT): Very permissive: free to use, change and share, including for business.
  • More on staying safe

Where people are talking about it