What is MIME type "image/heic"?

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

image/heic is a file type for high-efficiency images. It uses the HEIF standard to compress photos while keeping quality high.

This format reduces file size compared to older formats like JPEG. It handles advanced features such as image sequences, depth data, and transparency.

Efficiency: Delivers high-quality images with lower storage needs.
Features: Supports multiple images in one file, ideal for bursts or live photos.
Usage: Common in modern smartphones and newer computer systems.
Flexibility: Can include extra data like depth maps or animations.

Files using this MIME type come with several extensions. You may see them as HEIC, HIF, HEIF, HEICS, or HEIFS.

For more details, check out High Efficiency Image File Format on Wikipedia.

Associated file extensions

.heic, .hif, .heif, .heics, .heifs

Usage Examples

HTTP Header

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


    Content-Type: image/heic

HTML

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


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

Associated file extensions

.heic, .hif, .heif, .heics, .heifs

FAQs

Which browsers support image/heic natively?

Currently, Safari (on macOS and iOS) is the only major browser with full native support for displaying image/heic files. Chrome, Firefox, and Edge generally do not support this MIME type directly, so developers usually convert these images to image/jpeg or image/webp for web compatibility.

How do I configure Apache to serve HEIC files?

To ensure your Apache server sends the correct Content-Type, add the MIME type definition to your .htaccess file or main configuration. Add the line AddType image/heic .heic .heif to instruct the server to associate these extensions with the image/heic MIME type.

How do I configure Nginx for HEIC support?

In Nginx, you need to update the mime.types file, which is usually located in /etc/nginx/. Add the entry image/heic heic; and image/heif heif; inside the types { } block, then reload Nginx to apply the changes.

Why can't I open HEIC files on Windows?

Windows 10 and 11 do not support image/heic by default without an add-on. You must install the HEIF Image Extensions package from the Microsoft Store to view these files in the Photos app or Explorer. Alternatively, you can use third-party tools to convert them to standard formats.

What is the difference between image/heic and image/jpeg?

Efficiency and features. image/heic files are typically about half the size of JPEGs with similar or better visual quality. Unlike JPEGs, HEIC also supports transparency (alpha channels) and can store multiple images in a single file, which is used for features like Apple's Live Photos.

Is image/heic the same as image/heif?

They are closely related but distinct; image/heif refers to the general High Efficiency Image File Format standard, while image/heic specifically indicates that the image is encoded using HEVC (H.265). In practice, most .heic files encountered on smartphones use the image/heic MIME type.

Should I use HEIC images on my website?

Generally, no, unless you provide a fallback. Because browser support is limited primarily to Apple devices, using image/heic directly will result in broken images for many users. It is best practice to convert these files to WebP or JPEG on the server before displaying them to the user.

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.