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 years to seconds.
Make sure your passwords are good enough.
Extract email addresses from any kind of text content.
Convert your HSV color format to HSLA format.
Count the amount of characters and words of a given text.
Convert fahrenheit degrees to celsius degrees with ease.