What is MIME type "application/edifact"?

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

application/edifact is a MIME type for messages formatted according to the EDIFACT standard. It tells software that the data follows a structured format for electronic business transactions.

These messages are used for automated data exchange in business. They are common in sectors like shipping, finance, and retail. The format helps different computer systems understand the same data without manual reformatting.

Business Integration – Enables automated document processing between companies.
Supply Chain Management – Streamlines orders, shipping instructions, and invoices.
Data Consistency – Reduces errors by using a standardized format.

Data files using this MIME type may appear with formats such as EDI, X12, and EDIFACT.

The type ensures that messages are parsed, validated, and processed quickly by different systems, making business transactions efficient and reliable.

Associated file extensions

.edi, .x12, .edifact

Usage Examples

HTTP Header

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


    Content-Type: application/edifact

HTML

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


    <a href="file.dat" type="application/edifact">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/edifact');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.edi, .x12, .edifact

FAQs

How do I view files with the application/edifact content type?

Since these files contain structured text, you can open them with any basic text editor like Notepad or VS Code to see the raw data. However, because the syntax is complex, it is recommended to use specialized EDI viewer software or an online parser to interpret the segments into a readable format.

How do I configure Apache or Nginx to serve .edi files correctly?

For Apache, add the line AddType application/edifact .edi .edifact to your config or .htaccess file. For Nginx, add application/edifact edi edifact; inside the types block of your mime.types configuration to ensure the server sends the correct Content-Type header.

Why does my browser download the file instead of displaying it?

Web browsers like Chrome and Firefox do not have built-in rendering engines for the EDIFACT standard. When a server returns the application/edifact MIME type, the browser defaults to downloading the file because it does not know how to visualize the data structure.

What is the difference between application/edifact and application/xml?

EDIFACT uses a compact, delimiter-based syntax designed for efficiency in older systems, whereas XML uses verbose tags to structure data. While both facilitate data exchange, modern integrations often convert legacy EDIFACT messages into XML or JSON for easier processing by web applications.

Can application/edifact be used for X12 files?

Technically, X12 (common in the US) and EDIFACT (common internationally) are different standards, although they both often use the .edi extension. While some systems might loosely use application/edifact for both, it is more accurate to use specific types like application/x12 or application/EDI-X12 for ANSI X12 data.

Is the application/edifact format secure?

The format itself consists of plain text data and is not executable, so it cannot natively carry viruses. However, because these files contain sensitive business transactions (invoices, shipping manifests), they should always be transmitted over encrypted protocols like AS2, SFTP, or HTTPS.

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.