Take an IP and try to look for the domain/host associated with it.
Get all possible details about an SSL certificate.
Ping a website, server or port..
Decode URL input to back to a normal string.
Convert a unix timestamp to UTC and your local date.
Convert text to binary and the other way for any string input.
Generate deep link mailto with subject, body, cc, bcc & get the HTML code as well.
Convert text to octal and the other way for any string input.
Easily convert IDN to Punnycode and back.