Convert your RGB color format to HEX format.
Convert your RGB color format to HEXA format.
Convert your RGB color format to HSV format.
Convert your RGB color format to HSL format.
Convert your RGB color format to HSLA format.
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.
Get approximate IP details.
Get & verify the meta tags of any website.
Make sure your passwords are good enough.