# Code block

> CodeBlock component for switching between multiple code files, with syntax highlighting, file icons, and copy code functionality.

- Author: [Ayushmaan Singh](https://21st.dev/@ayushmxxn_c278bc2d)
- Library: [Serenity UI](https://21st.dev/@ayushmxxn_c278bc2d/library/serenity-ui)
- License: mit
- Tags: Code Snippet
- npm dependencies: lucide-react, framer-motion, react-syntax-highlighter
- Live preview: https://21st.dev/@ayushmxxn_c278bc2d/components/code-block

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/ayushmxxn_c278bc2d/code-block?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/code-snippet.md