Which MIME types are related to file extension ".gz"?
The .gz file extension is associated with 7 MIME types:
application/gzip, application/gzip-compressed, application/gzipped, application/x-gunzip, application/x-gzip, application/x-gzip-compressed, application/octet-stream.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .gz Files
GZ files are compressed archives that use the gzip algorithm to shrink file sizes and optimize data transfer.
They handle compression at a high speed and are common in Unix-like systems, though many Windows apps support them as well.
- Compression technique: Uses the gzip algorithm.
- Main use: Compresses single files; often combined with tar to form .tar.gz archives.
- MIME types: Registered as application/gzip, application/x-gzip (among others), indicating its archival and compression capabilities.
- Software support: Can be opened with 7-Zip, WinRAR, WinZip, and native command-line tools like gunzip.
- Alternate use: Sometimes used under application/octet-stream for specific data types, such as beddit compressed files.
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
application/gzip, application/gzip-compressed, application/gzipped, application/x-gunzip, application/x-gzip, application/x-gzip-compressed, application/octet-stream
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.