What is MIME type "text/x-mojo"?

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

The MIME type text/x-mojo marks a file as written in the Mojo language. It tells tools that the file is a human‐readable source code file rather than binary data.

When a file is labeled with text/x-mojo, editors and development tools can enable language-specific features like syntax highlighting and error checking. It also helps build systems and interpreters identify the file’s role in a codebase.

Files using this MIME type commonly use source code extensions such as MOJO and 🔥.

For more on MIME types and their roles in file handling, see the MIME types documentation.

Associated file extensions

Usage Examples

HTTP Header

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


    Content-Type: text/x-mojo    
  

HTML

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


    <a href="file.dat" type="text/x-mojo">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', 'text/x-mojo');    
      res.end('Content here');    
    }).listen(3000);    
  

Associated file extensions

FAQs

What is the text/x-mojo MIME type used for?

The MIME type text/x-mojo represents source code written in the Mojo programming language. It indicates to text editors, IDEs, and web servers that the file contains human-readable instructions designed for high-performance AI development.

Which file extensions are associated with text/x-mojo?

This MIME type is primarily associated with the mojo file extension. Uniquely, the Mojo language also supports the fire emoji extension (.🔥), though standard development tools and servers most commonly encounter the ASCII .mojo format.

How do I configure Apache to serve Mojo files?

To ensure Apache serves Mojo files with the correct content type, add the following line to your .htaccess file or main configuration: AddType text/x-mojo .mojo. This helps browsers and downstream tools identify the file as code rather than generic plain text.

Why does this MIME type start with "x-"?

The x- prefix signifies that text/x-mojo is a non-standard or experimental subtype not yet formally registered with the IANA. This is common for newer programming languages, and modern tools handle it without issues as long as the mapping is defined.

Will web browsers execute text/x-mojo files?

No, web browsers do not natively execute Mojo source code. If a user navigates to a .mojo file, the browser will typically display it as plain text or prompt for a download, unless a server-side process compiles it to WebAssembly or another web-compatible format.

Is text/x-mojo the same as Python MIME types?

No, although Mojo is a superset of Python, text/x-mojo is distinct from text/x-python. Tools need to distinguish between the two to apply the correct compiler optimizations and syntax highlighting for Mojo-specific features that standard Python interpreters cannot handle.

How can I fix Nginx serving Mojo files as application/octet-stream?

If Nginx serves .mojo files as binary data, you need to update your mime.types file or server block. Add text/x-mojo mojo; inside the types { ... } block and reload Nginx to ensure the headers are sent correctly.

General 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.