The best Ad Blocker alternative to simplewall is Portmaster, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to simplewall and six of them are Ad Blockers so hopefully you can find a suitable replacement. Other interesting Ad Blocker alternatives to simplewall are Pi-hole, NetGuard, OpenSnitch and Comodo Free Firewall.
simplewall alternatives are mainly Ad Blockers, but if you're looking for
Firewalls or Network Monitors you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to simplewall.
Portmaster blocks your whole internet connection. The toggles in the app do absolutely nothing.