What is MIME type "text/x-ascii-art"?

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

text/x-ascii-art is a MIME type for plain text files that contain artwork made solely from ASCII characters. It marks files that hold images created with standard text symbols instead of pixels. These artworks are made with characters like letters, numbers, and punctuation.

This type is useful when graphic images are not practical or available. Content creators use it in environments that support only text. It is also popular in coding communities and forums where plain text is preferred.

Creative Artwork: Enables building images using keyboard characters for artistic or humorous effects.
Low-Resource Environments: Ideal for systems, terminals, or file logs that handle only text.
Developer Signatures: Often used in readme files, email signatures, and code comments to add a creative touch.

Files using this MIME type are commonly saved with extensions such as TXT, ASC, or ASCII. The type signals that the content is plain text meant to be viewed as creative images without additional image processing.

For more technical details, check out the resources on ASCII art.

Associated file extensions

.txt, .asc, .ascii

Usage Examples

HTTP Header

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


    Content-Type: text/x-ascii-art

HTML

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


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

Associated file extensions

.txt, .asc, .ascii

FAQs

What is the specific purpose of the text/x-ascii-art MIME type?

This MIME type explicitly identifies a file as containing ASCII art—visuals created using text characters—rather than generic prose or code. It helps specialized software or users distinguish creative text layouts from standard documents.

How does text/x-ascii-art differ from text/plain?

Technically, both types consist of plain text data. However, text/plain is the standard catch-all for text, while text/x-ascii-art is a non-standard signal that the content relies on specific character alignment (monospaced fonts) to form an image.

Why does my ASCII art look distorted when viewed in a web browser?

ASCII art requires a monospaced font (like Courier or Consolas) where every character has the same width. If a browser renders the file using a proportional font or applies automatic line wrapping, the alignment breaks; viewing the file inside HTML <pre> tags usually resolves this.

How do I configure an Apache server to serve .asc files with this type?

You can add the definition to your .htaccess file or server config. Use the directive AddType text/x-ascii-art .asc to associate the extension. Note that some browsers may force a download for unknown x- types rather than displaying them inline.

Is text/x-ascii-art a standard IANA MIME type?

No, the x- prefix indicates it is an experimental or non-standard subtype. While useful for internal categorization, using standard types like text/plain ensures better compatibility across different browsers and operating systems.

Can I use this MIME type for NFO files?

Yes, NFO files often contain elaborate ASCII or ANSI art and fit this category well. However, Windows often associates .nfo with System Information tools, so serving them as text/plain or text/x-ascii-art helps ensure they open as text in a browser.

What file extensions usually use text/x-ascii-art?

The most common extensions are .txt, .asc, and .ascii. It is also occasionally applied to .nfo files or standard README files that feature significant text-based artwork.

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.