> For the complete documentation index, see [llms.txt](https://osl.mistium.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://osl.mistium.com/standard-library/data/mime.md).

# mime

Use `mime` to inspect MIME types, file extensions, media categories, charsets, and content disposition headers.

```osl
import "std:mime"
```

## API reference

### `mime`

| Method                                    | Returns   | Notes                                                                           |
| ----------------------------------------- | --------- | ------------------------------------------------------------------------------- |
| `mime.typeByExt(ext: any)`                | `string`  |                                                                                 |
| `mime.byFilename(name: any)`              | `string`  | Resolves the filename's final extension through `typeByExt`.                    |
| `mime.extByType(mtype: any)`              | `string`  |                                                                                 |
| `mime.parse(contentType: any)`            | `object`  | Parses input data.                                                              |
| `mime.format(mtype: any, params: object)` | `string`  | Formats a value for display.                                                    |
| `mime.resolve(input: any)`                | `string`  | Normalizes a MIME type, extension, or filename using final-extension semantics. |
| `mime.isText(input: any)`                 | `boolean` |                                                                                 |
| `mime.isImage(input: any)`                | `boolean` |                                                                                 |
| `mime.isAudio(input: any)`                | `boolean` |                                                                                 |
| `mime.isVideo(input: any)`                | `boolean` |                                                                                 |

## Notes

* Prefer `import "std:mime"`; the older `import "osl/mime"` spelling remains supported.

## Behavior and limits

MIME parsing accepts parameters, quoted values, and case differences. Unknown extensions and malformed media types return empty or failure values instead of panicking.