MIME type is a way to classify the data type of a file. MIME stands for "Multipurpose Internet Mail Extensions." It is an extension of the Internet e-mail standard that defines the different types of content that can be attached to e-mail messages. MIME is commonly used when sending attachments and provides information about the data type, size, and encoding of an attachment. The MIME type indicates what kind of data the attachment contains, for example: text/plain or image/jpeg.

Are the MIME type and file extension the same?

No, the MIME type and the file extension are not the same. The MIME type is only a text string that identifies what kind of content is being transmitted. The file extension is a code that tells the computer which application to use to open the document. Usually, the file extension is corresponding to a certain mime type. But sometimes it can not match, for example when someone changes a file extension manually.

When is useful to know MIME type of file?

Knowing the MIME type of a file is useful when you need to know how to handle it. For example, if you want to upload a file to the web server, knowing its MIME type will help you determine which format is appropriate. MIME types are used by email clients and web browsers to determine what type of content they are handling.

How can I check the file's MIME type?

There are two ways to check the MIME type of a file. The first is to use your operating system's built-in commands. The second way is to look for an extension that matches the file type. For example, ".txt" for plain text files and ".pdf" for PDF files. Or you can use our online tool, which can make this job easy and faster.

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About WEBP format

Google web image file format

WebP images are an upgraded version of the JPEG, PNG, and GIF file formats. They save up to 50% on file sizes or can retain the same quality with about half the size. Google introduced WebP format in 2010. Now almost all web browsers support WebP format.

WebP typically achieves an average of 30% more compression than JPEG and JPEG 2000, without loss of image quality (see Comparative Study).

According to caniuse, currently 79.2% of browsers support the WebP image format. That would include Chrome, Firefox, and Edge. Safari will support WebP in version 14, which is expected to be released in September 2020.

WebP offers 26% smaller file sizes than PNG, while still providing transparency and the same quality. WebP loads faster (due to file size) than PNG images.

WebP is used by 3.7% of all the websites.

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