# File Thumbnail

> A compact file preview thumbnail shell for externally generated images, loading states, and fallback states. Renders a square preview at any aspect ratio with a blur-in reveal on first image load.

- Author: [extend-hq](https://21st.dev/@extend-hq)
- License: mit
- Tags: Image, Preview, Thumbnail, File, File Thumbnail
- Live preview: https://21st.dev/@extend-hq/components/file-thumbnail

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/extend-hq/file-thumbnail?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/image.md