Top Free Firewall Software - Page 2

How Many Firewall Software Products Does G2 Track?

Total Products under this Category: 100

Category Stats (Sep 2026)

  • Average Rating: 4.43/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Zscaler Internet Access (+0.07%) - Among all products in this category, Zscaler Internet Access recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Firewall Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 5,200+ Authentic Reviews
  • 100+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Firewall Software

G2 Grid® for Firewall Software plotting products by satisfaction and market presence

Highlighted products: Sophos Firewall, Check Point Next Generation Firewalls (NGFWs), Zscaler Internet Access, FortiGate-VM NGFW, Palo Alto Networks Cloud NGFW, Check Point Cloud Firewall (formerly CloudGuard Network Security), Palo Alto Networks Next-Generation Firewalls, and Arista NG Firewall.

Underlying data: [Grid® JSON](https://www.g2.com/categories/firewall-software/grids.json?focus%5B%5D=sophos-firewall&focus%5B%5D=check-point-next-generation-firewalls-ngfws&focus%5B%5D=zscaler-internet-access&focus%5B%5D=fortigate-vm-ngfw&focus%5B%5D=palo-alto-networks-cloud-ngfw&focus%5B%5D=check-point-cloud-firewall-formerly-cloudguard-network-security&focus%5B%5D=palo-alto-networks-next-generation-firewalls&focus%5B%5D=arista-ng-firewall)

OneFirewall

OneFirewall Alliance is a UK-based cybersecurity company headquartered in London. It operates a crowd-sourced Cyber Threat Intelligence (CTI) platform built on an alliance of 180+ organisations worldwide. Member organisations share vetted threat indicators — malicious IP addresses, domains, URLs, and malware signatures — which are consolidated, enriched, and distributed in real time as actionable feeds for automated blocking. The platform covers the full defensive lifecycle: from intelligence ingestion and threat validation through to enforcement at the firewall, IPS, WAF, mobile endpoint, and DNS layer.

Who Is the Company Behind OneFirewall?

Remote Desktop Firewall

RDPFirewall try to protect your server or computer while using remote desktop service. RDPFirewall futures : 1 - Detect and block brute force attacks 2 - Black Countries 3 - OTP for your remote desktop 4 - Detect Suspected Users 5 - Change remote desktop port 6 - Black times

Who Is the Company Behind Remote Desktop Firewall?