Which MIME types are related to file extension ".html"?

The .html file extension is associated with 4 MIME types:

text/html, application/xhtml+xml, application/vnd.openxmlformats-officedocument.vmldrawing, text/vnd.hocr+html.

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

About .html Files

HTML files are text files that store web page code. They use markup to structure content.


Browsers like Chrome, Firefox, and Edge display these files. Editors such as Notepad or Visual Studio Code let users modify them.
According to FilExt.com, HTML files are fundamental to web development. Their MIME types ensure browsers handle text, XML rules, vector graphics, or OCR data properly.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

text/html, application/xhtml+xml, application/vnd.openxmlformats-officedocument.vmldrawing, text/vnd.hocr+html

FAQs

How do I open an HTML file on my computer?

You can open an HTML file by simply double-clicking it, which will launch your default web browser (such as Google Chrome, Firefox, or Microsoft Edge) to display the content. If you want to see the underlying code, right-click the file and select "Open with" to choose a text editor like Notepad.

How can I edit the code inside an HTML file?

To modify the code, open the file in a plain text editor or a dedicated code editor like Visual Studio Code or Sublime Text. Do not use word processors like Microsoft Word, as they add extra formatting that breaks the HTML structure.

What is the difference between .html and .htm extensions?

There is no functional difference between .html and .htm; browsers treat them exactly the same. The .htm extension is a legacy format from early Windows (DOS) systems that were limited to three-letter file extensions.

How do I convert an HTML file to PDF?

Open the HTML file in your web browser and press Ctrl+P (Windows) or Cmd+P (Mac) to open the print menu. In the printer destination settings, select "Save as PDF" or "Microsoft Print to PDF" to save a copy of the page layout as a PDF document.

Why are images missing when I open my HTML file locally?

HTML files usually do not store images directly; they reference external image files using file paths. If you move the HTML file to a new folder without moving the associated image folder, or if the paths are incorrect, the browser cannot find the images and will display a broken icon.

Are HTML file attachments safe to open?

While HTML is the standard format for websites, receiving an .html file as an email attachment can be a security risk. Phishing attacks often use local HTML attachments to mimic banking login pages, so treat unsolicited HTML attachments with extreme caution.

What is the correct MIME type for HTML files?

The standard MIME type for HTML content is text/html. However, if the file is strictly valid XHTML, it may be served as application/xhtml+xml. You can verify specific type configurations on mime-type.com.

Can I convert a Word document to HTML?

Yes, Microsoft Word allows you to go to File > Save As and select Web Page (*.htm; *.html) from the file type dropdown. However, the resulting code is often very complex and cluttered compared to hand-written HTML.

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 can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.