Convert your HEX color format to HEXA format.
Convert your HEX color format to RGB format.
Convert your HEX color format to HSV format.
Convert your HEX color format to HSL format.
Convert your HEX color format to HSLA format.
Easily convert IDN to Punnycode and back.
Extract email addresses from any kind of text content.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Take an IP and try to look for the domain/host associated with it.
Make sure your passwords are good enough.
Get all possible details about an SSL certificate.