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 octal and the other way for any string input.
Get all possible details about a domain name.
Get the gravatar.com globally recognized avatar for any email.
Ping a website, server or port..
Get the size of a text in bytes (B), Kilobytes (KB) or Megabytes (MB).
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Make sure your passwords are good enough.