Convert text to ascii and the other way for any string input.
Convert text to binary and the other way for any string input.
Convert text to hexadecimal and the other way for any string input.
Convert text to decimal and the other way for any string input.
Convert text to octal and the other way for any string input.
Generate whatsapp message links with ease.
Generate a paypal payment link with ease.
Get & verify the meta tags of any website.
Get all the HTTP headers that an URL returns for a typical GET request.
Make sure your passwords are good enough.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.