Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.




Comments about Portmaster as an Alternative to simplewall
Portmaster has more features, but is much more bloated. Simplewall uses much less system resources. Plus, in terms of DNS, DNScrypt has more features than Portmaster...

Most users think Portmaster is a great simplewall alternative.
Portmaster is the most popular Windows & Linux alternative to simplewall.
Portmaster is the most popular Open Source & free alternative to simplewall.
- Portmaster is Freemium and Open Source


























































Portmaster blocks your whole internet connection. The toggles in the app do absolutely nothing.