Take an IP and try to look for the domain/host associated with it.
Get approximate IP details.
Get all possible details about an SSL certificate.
Get all possible details about a domain name.
Ping a website, server or port..
Reverse the words in a given sentence or paragraph with ease.
Extract email addresses from any kind of text content.
Use the Google translator API to generate text to speech audio.
Convert your HSLA color format to RGB format.