Convert text to binary 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.
Extract email addresses from any kind of text content.
Get approximate IP details.
Check if the URL is cached or not by Google.
Encode any string input to Base64.