OpenSnitch Alternatives

Lightweight and non-intrusive firewall

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

Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Try for free freemium $9.0 / Monthly (Lite plan)

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

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

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

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

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

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.

Server-based firewall.

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

ferm is a tool to maintain complex firewalls, without having the trouble to rewrite the complex...

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