What is MIME type "image/x-neo"?

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

MIME type: image/x-neo defines a specific image format used by the NEOchrome system.
Purpose: It lets applications know how to read and display these images correctly.
It is linked to files with the NEO extension.
This setup follows the standards of MIME types to improve file handling and integration.

Associated file extensions

Usage Examples

HTTP Header

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


    Content-Type: image/x-neo    
  

HTML

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


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

Associated file extensions

FAQs

Can I display image/x-neo files directly in modern web browsers?

No, standard web browsers like Chrome, Firefox, and Edge do not natively support the NEOchrome format. To display these images on a website, you must convert them to a web-friendly format like PNG or use a JavaScript-based retro image viewer.

How do I configure Apache to serve .neo files correctly?

You can enable the correct MIME type by adding a directive to your .htaccess file or server configuration. Add the line AddType image/x-neo .neo to ensure browsers and download managers recognize the file type.

What software can open files with the image/x-neo MIME type?

Since this is a legacy format from the Atari ST era, you need specialized software like XnView MP, RECOIL (Retro Computer Image Library), or an Atari emulator. Standard operating system image viewers usually cannot open .neo files.

How do I add support for image/x-neo in Nginx?

Update your mime.types file or the types block in your server configuration. Add the entry image/x-neo neo; and reload Nginx to serve the files with the correct headers.

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

The x- prefix indicates that image/x-neo is a non-standard or experimental subtype not officially registered with the IANA. It is conventionally used for proprietary formats like the NEOchrome master image format.

How can I convert image/x-neo files to PNG or JPEG?

You can use batch conversion tools that support retro formats, such as XnConvert or ImageMagick (often requiring specific plugins). This allows you to transform the legacy graphics into modern formats compatible with mime-type.com standards.

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.