Convert text to binary and the other way for any string input.
Convert text to hexadecimal 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.
Decode Base64 input to back to string.
Convert text to ascii and the other way for any string input.
Encode any string input to Base64.
Decode Base64 input to an image.
Get the gravatar.com globally recognized avatar for any email.