Best Open Source Firewall Software

Explore list of top open source firewall software, such as pfSense, IPFire, OPNSense, NG Firewall, and Smoothwall. To discover more options and assess additional features, compare various Firewall Software to find the best fit for your needs.

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McAfee

$50 Per Year

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pfSense

Available on Request

Free Demo
OPNsense

Available on Request

Free Demo
GlassWire Firewall

Available on Request

Free Demo

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List of 12 Best Open Source Firewall Software

Showing 1 - 27 of 14 products
#3

Product Description

pfSense offers user-friendly firewall software that simplifies network management. With its intuitive tools, it helps streamline operations and enhance efficiency, making it easier for users to manage their network security seamlessly. Learn more about pfSense

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App
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#4

Product Description

OPNsense streamlines and automates complex firewall tasks, enabling users to enhance security efficiently and effectively. Learn more about OPNsense

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App
API
#5

Product Description

GlassWire Firewall offers intuitive network monitoring and security, making it easy for users to protect their devices from unauthorized access and threats. Learn more about GlassWire Firewall

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App

Recent Review

"Using for a month. Great for tracking..." - Abdu

#6

Product Description

PrivateFirewall offers robust, user-friendly protection to keep your sensitive data safe from cyber threats without the hassle of complex configurations. Learn more about PrivateFirewall

This is Open Source Firewall Software

Starting Price: Available on Request

#7

Product Description

Shield your PC effortlessly with a firewall that’s as light as a whisper but as strong as steel. Learn more about TinyWall

This is Open Source Firewall Software

Starting Price: Available on Request

Recent Review

"This is one of the best firewalls..." - Shashank Dahewar

#8

Product Description

SonicWall Email Security is a fully featured email security and firewall software designed to serve agencies and enterprises. SonicWall Email Security provides end-to-end solutions designed for Windows. This online email security system offers anti-spam, anti-virus, email attachment protection, policy management, and reporting/analytics in one place. Learn more about SonicWall Email Security

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App
API
#9

Product Description

Sophos Firewall Software provides robust, user-friendly protection by intelligently blocking threats and simplifying network security management. Learn more about Sophos

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App
Free Trial

Recent Review

"I have used Sophos for a number..." - Ishita

#10

Product Description

Make your MAC system immune to any sort of cyber attacks by using high-end MAC protection software, Avast. Stop Wi-Fi intruders from infringing on your database and stay safe from all sorts of ransomware with this best firewall software. Learn more about Avast

This is Open Source Firewall Software

Starting Price: Available on Request

Mobile App
Free Trial

Recent Review

"As the IT manager for Klix.com.pk, I..." - Muhammad Hassan

#11

Product Description

This information is provided by vendor.

Comodos free antivirus and firewall software provide the best protection from malware instances, virus infections, and suspicious hidden files. It is reliable, cloud-based protection that scans quickly and updates continuously to include the latest malware information from around the globe. Learn more about Comodo

Starting Price: Available on Request

Mobile App
Free Trial

Recent Review

"I recently installed Comodo Antivirus on my..." - alan jolly

#12

Product Description

ZoneAlarm Pro Firewall streamlines and automates complex firewall tasks, enabling users to achieve more in less time with enhanced simplicity and efficiency. Learn more about ZoneAlarm Pro Firewall

Starting Price: $40 Per Year

Mobile App
Free Trial

Recent Review

"In my opinion, it is one of..." - Ayush Sharma

#13

Product Description

Kamatera offers user-friendly firewall software designed to simplify operations and enhance efficiency. With intuitive tools, it seamlessly integrates into your workflow, making it easier to manage and protect your systems. Learn more about Kamatera

Starting Price: Available on Request

Mobile App
API
#14

Product Description

This information is provided by vendor.

Modshield SB streamlines and automates complex firewall tasks, enabling users to achieve more in less time with ease and efficiency. Learn more about Modshield SB

Starting Price: $4300 Per Instance

API
Free Trial
Jainy Patel
Researched and Written by Jainy Patel | Last Updated: October 25, 2025