What is MIME type "image/svg+xml"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
image/svg+xml is a MIME type for vector graphics rendered using XML. It designates images that scale without quality loss. The format works with files like SVG and its compressed version, SVGZ.
This MIME type is ideal for graphics on the web. It relies on simple, human-readable text. That makes it versatile for editing and scripting.
- Responsive design – used in sites and apps that need crisp images at any resolution.
- Interactive graphics – supports animations and scripting for dynamic visual content.
- Scalable illustrations – ideal for icons, logos, and diagrams that must remain clear when resized.
More technical details and examples are available on resources like Wikipedia.
Associated file extensions
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: image/svg+xml
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="image/svg+xml">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/svg+xml');
res.end('Content here');
}).listen(3000);
Associated file extensions
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.