What is MIME type "application/arj"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/arj is a file format for compressed archives. It bundles many files into one container with compression for storage and transfer efficiency. Files using this format have the extension ARJ.
This MIME type is used mainly for legacy data handling and efficient file packaging. It was popular in the era before modern archive formats took over.

Data Compression: Reduces file size for storage and faster transfers.
Archival Storage: Combines several files into a single archive.
Legacy Support: Maintains compatibility with older systems and software.
Efficient Transfer: Simplifies sending multiple files over limited bandwidth.

For more detailed technical insights, visit Wikipedia - ARJ Archive.

Associated file extensions

.arj

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/arj

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/arj">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/arj');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.arj

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.