File Mime Type Finder
Find the MIME type of any file. This tool inspects the file locally in your browser without uploading it to a server, ensuring your data remains private.
MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. It is defined in a string format, such as `text/html` or `image/jpeg`. Browsers use the MIME type, not the file extension, to determine how to process a URL, so it's critically important for web servers to send the correct MIME type in the `Content-Type` header of a response.
For example, a browser knows to render an HTML file when it receives a `text/html` MIME type, and it knows to display an image for `image/png`. This tool helps you identify the correct MIME type for any file.
This tool uses your browser's built-in file handling capabilities. When you select a file, the browser provides a File object which contains properties like the name, size, last modification date, and—most importantly—the MIME type as determined by your operating system. Our tool simply reads and displays this information for you. Because of this, the accuracy of the MIME type depends on your OS's file type registry.
Is my file uploaded to a server?
No, never. This tool is built for privacy. The file you select is read directly by your browser, and its metadata is displayed. The file contents are never sent over the internet.
What if the MIME type is blank or incorrect?
If a file has no extension or its extension is not recognized by your operating system, the MIME type may appear as blank or as a generic `application/octet-stream`. This indicates an unknown binary file.