Free online tools to check the MIME type of any file and look up Gravatar profiles by email address. Quick utilities for developers and web workers.
Two small but handy utilities that solve specific problems developers and website owners run into regularly.
File MIME Type Checker
Ever uploaded a file only to get a "file type not allowed" error? The File MIME Type Checker tells you the actual MIME type of any file. Upload a file and it reads the file's magic bytes (not just the extension) to determine what it really is.
This is especially useful when:
- You're debugging upload issues on your website
- You received a suspicious file and want to check its real type
- You need to configure a server's MIME type mappings
Gravatar Checker
The Gravatar Checker looks up a Gravatar profile by email address. Gravatar (Globally Recognized Avatar) is the avatar system used by WordPress, GitHub, and thousands of other sites. If you've set up a Gravatar, entering your email here shows the associated profile image.
Handy for checking whether a commenter or contributor has a Gravatar set up before you show their avatar on your site.