Convert your text to any kind of text case, such as lowercase, UPPERCASE, camelCase...etc.
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.