Convert your HEX color format to RGB format.
Convert your HEX color format to RGBA 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.
Generate passwords with custom length and custom settings.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Check if the URL is cached or not by Google.
Make sure your passwords are good enough.
Take an IP and try to look for the domain/host associated with it.
Get approximate IP details.