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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 ascii and the other way for any string input.
Convert text to decimal and the other way for any string input.
Get the gravatar.com globally recognized avatar for any email.
Easily generate your own custom signature and download it with ease.
Make sure your passwords are good enough.
Get the web-host of a given website.
Parse details from user agent strings.