# Checkbox

> A checkbox form control with a label and optional description that works controlled or uncontrolled, and supports an indeterminate (partly checked) and a read-only state like a native checkbox.

- Author: [robertlib](https://21st.dev/@robertlib)
- Library: RobertLib
- License: MIT
- Tags: Checkbox, Form, Form Control
- Live preview: https://21st.dev/@robertlib/components/checkbox

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/robertlib/checkbox?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/checkbox.md