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Deno standard library
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import * as mod from "";

Utility functions for media types (MIME types).

This API is inspired by the GoLang mime package and jshttp/mime-types, and is designed to integrate and improve the APIs from x/media_types.

The vendor folder contains copy of the jshttp/mime-db db.json file along with its license.


A map of extensions for a given media type.


Given an extension or media type, return a full Content-Type or Content-Disposition header value.

For a given media type, return the most relevant extension, or undefined if no extension can be found.

Returns the extensions known to be associated with the media type type. When type has no associated extensions, the function returns undefined.

Serializes the media type and the optional parameters as a media type conforming to RFC 2045 and RFC 2616.

Given a media type or header value, identify the encoding charset. If the charset cannot be determined, the function returns undefined.

Parses the media type and any optional parameters, per RFC 1521. Media types are the values in Content-Type and Content-Disposition headers. On success the function returns a tuple where the first element is the media type and the second element is the optional parameters or undefined if there are none.

Returns the media type associated with the file extension. Values are normalized to lower case and matched irrespective of a leading ..

Type Aliases

Maps content types to their corresponding file extensions.

MIME-types database.

Known extension or type. Used in contentType.