21st AI — Generate UI components in variants | 21st
What do you want to explore?
One prompt, several variants.
21st AI generates new UI components in multiple variants, so you compare and pick instead of settling for the first take.
Several variants per run
Every generation produces multiple takes on your prompt. Compare them live and keep the best one.
Remix the library
Start from any community component and generate your own version of it.
Chat to refine
Keep iterating on the variant you like: tweak styles, behavior and copy in chat.
Copy code & prompt
Take the component's code, or the prompt behind it, in one click.
Wherever you code.
On the web
The full editor: browse, generate, edit, publish.
In your agent
MCP for Cursor, Claude, VS Code, Codex, Windsurf.
In your terminal
The 21st CLI: search, install and generate.
$ npx 21st