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 all possible details about an SSL certificate.
Get all possible details about a domain name.
Ping a website, server or port..
Easily remove duplicate lines from a text.
Get details of any file type, such as the mime type or last edit date.
Make sure your passwords are good enough.
Generate passwords with custom length and custom settings.
Check if the URL is banned and marked as safe/unsafe by Google.
Get the size of a text in bytes (B), Kilobytes (KB) or Megabytes (MB).