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.
Ping a website, server or port..
Use the Google translator API to generate text to speech audio.
Extract email addresses from any kind of text content.
Separate text back and forth by new lines, commas, dots...etc.
Easily convert IDN to Punnycode and back.
Get the size of a text in bytes (B), Kilobytes (KB) or Megabytes (MB).