Best Firewall Software

Firewalls are barriers used to secure networks from hackers, malware, and other attackers. Firewalls come in both hardware and software form, but all types provide fortified security between networks and outside threats. IT managers configure firewalls to specific system requirements, ensuring no data is vulnerable. Once implemented, they will monitor firewall tools to ensure security.

Smaller companies and personal computers will rarely require hardware firewalls, but large enterprise companies will use hardware firewalls within their own systems to limit access outside the company or between departments. Firewall products will have significant overlap with network security software and web security software products, as they all aim to secure systems and information. Some products may come equipped with vulnerability management software tools to detect and defeat threats.

To qualify for inclusion in the Firewall category, a product must:

  • Assess and filter user access
  • Create barriers between networks and the internet
  • Alert administrators when unauthorized access is attempted
  • Outline and enforce security and authentication rules
  • Automate tasks associated with testing or monitoring
G2 Grid® for Firewall
Leaders
High Performers
Contenders
Niche
Market Presence
Satisfaction
Star Rating

Firewall reviews by real, verified users. Find unbiased ratings on user satisfaction, features, and price based on the most reviews available anywhere.

Compare Firewall Software

G2 takes pride in showing unbiased ratings on user satisfaction. G2 does not allow for paid placement in any of our ratings.
Results: 48
Filter Results
Filter by:
Sort by
Star Rating
Sort By:
Results: 48

    FortiGate offers a network security platform, designed to deliver threat protection and performance with reduced complexity.

    Firewall solutions from Cisco offer integrated security to help safeguard various network environments.

    SonicWall real-time breach detection and prevention solutions protect more than one million networks worldwide

    A Personal Firewall controls network communication in and out of a single users computer and will restrict the communication based on security policies.

    For over 20 years, WatchGuard has pioneered cutting-edge cyber security technology and delivered it as easy-to-deploy and easy-to-manage solutions. With industry-leading network security, secure Wi-Fi, multi-factor authentication, and network intelligence products and services, WatchGuard enables businesses from around the globe to protect their most important assets.

    Adaptive Security Virtual Appliance is a virtualized network security solution based on the market-leading Cisco ASA 5500-X Series firewalls.

    Avast is the global leader in next-gen cyber security products for consumers and businesses and protects over 400 million people online. Avast offers products under the Avast and AVG brands, that protect people from threats on the internet with one of the most advanced threat detection networks in the world. Avast digital security products are top ranked for mobile, PC and Mac. For businesses, Avast offers comprehensive antivirus security that keeps your devices, data, and employees safe

    Our security solution provides fine-grained access comtrol that identifies, mitigates, and fully reports on the sophisticated security threats of the moment

    GlassWire's free firewall helps protect your computer, privacy, and data by visualizing your network activity.

    Ultimate enterprise firewall performance, security, and control.

    Our next-generation firewall classifies all traffic, including encrypted traffic, based on application, application function, user and content. You can create comprehensive, precise security policies, resulting in safe enablement of applications. This lets only authorized users run sanctioned applications, greatly reducing the surgace area of cyber attacks across the organization.

    Barracuda's Cloud Generation Firewalls redefine the role of the Firewall from a perimeter security solution to a distributed network optimization solution that scales across any number of locations and applications, connects on-premises and cloud infrastructures, and helps organizations transform their business.

    Check Point Firewall. The Check Point Firewall Software Blade incorporates all of the power and capability of the revolutionary FireWall-1 solution while adding user identity awareness to provide granular event awareness and policy enforcement.

    The pfSense project is a powerful open source firewall and routing platform based on @FreeBSD.

    Huawei Enterprise is a leading global ICT solutions provider.

    Zscaler Internet Access delivers the complete security stack as a service from the cloud.

    Azure Firewall automatically scales with your usage during peak load or as your business grows, eliminating the need to predict and reserve capacity for peak usage.

    FortiGate-VM is a full-featured FortiGate packaged as a virtual appliance.

    OmniShield is the next-generation cybersecurity solution that extends your company's perimeter to all your sites while providing omnipresent, enterprise-grade security.

    The mobilization of workforce has led to demand for anytime-anywhere access to network resources.

    The VM-Series is a virtualized form factor of our next-generation firewall that can be deployed in a range of private and public cloud computing environments based on technologies from VMware, Amazon Web Services, Microsoft, Citrix, and KVM. The VM-Series natively analyzes all traffic in a single pass to determine the application identity, the content within, and the user identity. These core elements of your business can then be used as integral components of your security policy, enabling

    Untangle protects your network with simply powerful solutions for web filtering, policy control, malware protection, bandwidth management and more!

    The IPCop Firewall is a Linux firewall distribution It is geared towards home and SOHO users.

    Kerio helps businesses to connect, communicate, and collaborate securely.

    Highly Available, Scalable and Flexible Protection Against Advanced Threats

    Learn More About Firewall Software

    Latest Firewall Articles