NoCookie is a simple and effective tool to protect your privacy.
With NoCookie you can set Safari to block cookies from one or more domains (or subdomains of a given domain).
Example use cases you might be interested in:
a. Website doesnt allow you to read it freely anymore and presents you a paywall to keep using it;
b. Website has a bug that doesnt allow you to log out;
c. Make sure no session data is passed through HTTP (avoid cross-site request forgery attacks);
NoCookie doesnt use VPNs or Proxies, instead it uses features native to Safari. You get your full privacy and the full performance of your Internet connection.