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 an SSL certificate.
Ping a website, server or port.
Easily convert ICO image files to JPG.
Easily convert kilobytes (kB) to zebibytes (ZiB).
Easily convert weeks to months.
Decode Base64 input to an image.