Take an IP and try to look for the domain/host associated with it.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get approximate IP details.
Get all possible details about a domain name.
Ping a website, server or port..
Check if the URL is cached or not by Google.
Encode any string input to Base64.
Easily convert months to weeks.
Easily convert bytes (B) to petabytes (PB).
Easily convert nibbles to zebibytes (ZiB).
Convert forum type bbcode snippets to raw HTML code.