OpenSnitch Alternatives

Lightweight and non-intrusive firewall

Ufw stands for Uncomplicated Firewall, and is program for managing a netfilter firewall.

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Gufw is an easy, intuitive way to manage your Linux firewall.

Little Snitch is a firewall application that monitors and controls outbound internet traffic.

Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.

Visualize network activity in detail, get notified when new apps access the network, look out for...

LuLu is the free open-source macOS firewall that aims to block unauthorized (outgoing) network...

Firestarter is an Open Source visual firewall program.

Emsisoft Online Armor Firewall is a freemium online firewall protection system by the Emsisoft that is based on the own independent protection technology of the Emsisoft.

NuFW is a GPL extension to Netfilter (that is Linux firewall). It adds identity-based filtering, i.

Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on...

Windows Firewall Control is not the built in firewall system in the Windows operating systems.

Server-based firewall.