MIME Type

application/x-tar

What is the application/x-tar MIME type?

The MIME type application/x-tar is used to tell browsers, APIs, and servers how a file or response body should be interpreted.

MIME stands for Multipurpose Internet Mail Extensions, and MIME types are now a standard part of HTTP responses and web content delivery.

When a browser or client receives a response with application/x-tar, it uses that information to decide how the content should be processed, rendered, downloaded, or executed.

Example

Content-Type: application/x-tar

HTTP example

HTTP/1.1 200 OK
Content-Type: application/x-tar
Content-Length: 1256

Common file extensions

.tar

Common use cases

Linux archives
Source code bundles
Server backups

Common mistakes

Using the wrong MIME type for the file being served
Returning text/plain instead of application/x-tar
Forgetting required parameters like charset when relevant
Using a deprecated MIME type in older server configurations
Serving assets with a mismatched Content-Type header, causing browser parsing issues

How browsers use it

Browsers use the Content-Type response header to decide how a response should be handled. For example, HTML is rendered as a page, CSS is parsed as styles, JavaScript is executed as script, and images are displayed visually. If the MIME type is incorrect, the browser may refuse to load the file correctly or may treat it as plain text or a download instead.

Developer note

Very common in Unix and Linux environments, especially with .tar.gz combinations.

Related MIME types

application/gzip application/zip application/octet-stream