OpenSnitch Alternatives

Little Snitch

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

BiniSoft.org Windows Firewall Control

A powerful tool which extends the functionality of Windows Firewall and provides new extra features which makes Windows Firewall better.

Features:

• Application Blocker
• Network Monitoring

Gufw

Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports...

ZoneAlarm Firewall

ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic. By detecting and preventing intrusions...

Radio Silence

Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.

Hands Off!

Hands Off! is an application to monitor and control the access of applications to your network and disks. Being able to monitor the normally unnoticeable activities...

Firestarter

Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and...

TripMode

Block internet connection for apps.

Features:

• Network Monitoring
• Networking

Douane

Douane is a personal firewall that protects a user's privacy by allowing a user to control which applications can connect to the internet from their GNU/Linux...

Stronghold

Stronghold is the easiest way to securely configure your Mac. Designed for macOS Sierra and High Sierra. Not yet tested on macOS Mojave, but I'm working on updating...

Features:

• Security & Privacy
• Security focused