Generate an MD2 hash for any string input.
Generate an MD4 hash for any string input.
Make sure your passwords are good enough.
Get approximate IP details.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get the gravatar.com globally recognized avatar for any email.
Easily remove duplicate lines from a text.
Ping a website, server or port..