Generate passwords with custom length and custom settings.
Make sure your passwords are good enough.
Get all possible details about a domain name.
Generate deep link mailto with subject, body, cc, bcc & get the HTML code as well.
Ping a website, server or port..
Easily convert IDN to Punnycode and back.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.