Convert text to hexadecimal and the other way for any string input.
Convert text to ascii and the other way for any string input.
Convert text to decimal and the other way for any string input.
Convert text to octal and the other way for any string input.
Get the gravatar.com globally recognized avatar for any email.
Get & verify the meta tags of any website.
Easily convert bytes (B) to terabytes (TB).
Make sure your passwords are good enough.
Easily convert bytes (B) to kilobits (kbit).
Easily convert bytes (B) to yottabytes (YB).