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

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-applescript marks files that hold plain text code written in AppleScript. These files can be opened and edited with any text editor.
They are designed for scripting and automating tasks in macOS.

Automates repetitive tasks across applications.
Controls scriptable programs and system functions.
Connects different parts of the macOS ecosystem through commands.

The source code is stored as simple text. It is not a compiled executable.
Files using this MIME type are commonly saved with the extension APPLESCRIPT.

For detailed technical insights and more examples, check the AppleScript documentation.

Associated file extensions

.applescript

Usage Examples

HTTP Header

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


    Content-Type: text/x-applescript

HTML

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


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

Associated file extensions

.applescript

FAQs

What is the difference between .applescript and .scpt files?

Files served as text/x-applescript (extension .applescript) contain human-readable plain text source code. In contrast, .scpt files are compiled binary scripts that are not plain text and require specific tools to read; they generally do not use this text-based MIME type.

How do I configure Apache to serve AppleScript files correctly?

To ensure your server sends the correct headers, add the directive AddType text/x-applescript .applescript to your .htaccess file or main configuration. This helps client applications identify the file as an automation script rather than generic text.

Can web browsers execute text/x-applescript files directly?

No, web browsers do not execute AppleScript code because it requires access to the local macOS system, which would be a major security risk. Browsers will usually display the file contents as plain text or prompt you to download the .applescript file.

How do I run a file with this MIME type on macOS?

You can open and run these files using the built-in Script Editor application found in the Utilities folder. For command-line execution, you can use the terminal command osascript filename.applescript.

What does the 'x-' prefix mean in text/x-applescript?

The x- prefix indicates that this is a non-standard MIME type not officially registered with the IANA. However, it is the de facto standard used by developers and servers to identify plain text AppleScript source code.

Is it safe to download files with the text/x-applescript type?

Since these files are plain text, simply downloading or reading them is safe. However, you should never execute an AppleScript from an untrusted source, as the code can automate powerful system actions on your Mac.

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.