# Form Description

> A small helper text element placed under a form field to show hints like the expected input format, linked via aria-describedby for accessibility.

- Author: [robertlib](https://21st.dev/@robertlib)
- Library: RobertLib
- License: MIT
- Tags: Form, Field, Description, Helper Text
- Live preview: https://21st.dev/@robertlib/components/form-description

## Install

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