Best Firewall Software
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What is Firewall Software?
Firewall software is a security tool that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Acting as a barrier between a trusted internal network and untrusted external networks, firewalls help prevent unauthorized access and protect against cyber threats. They work by analyzing data packets and determining whether they should be allowed through based on set policies, blocking potentially harmful traffic. Modern firewalls often incorporate advanced features like intrusion prevention, application filtering, and deep packet inspection to strengthen security further. By providing this critical layer of protection, firewall software safeguards sensitive data and ensures the integrity of networked systems. Compare and read user reviews of the best Firewall software currently available using the table below. This list is updated regularly.
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1
Servers.com by Nexcess
Nexcess
Servers.com by Nexcess provides hybrid bare metal cloud infrastructure designed to help businesses scale, customize, and manage their server environments from a unified platform. The company offers a range of solutions including Scalable Bare Metal, Enterprise Bare Metal, AI Compute, and Managed Kubernetes to support diverse workload requirements. Its global network of strategically located data centers helps organizations reduce latency and improve performance for users around the world. Servers.com serves industries such as gaming, fintech, adtech, streaming, SaaS, iGaming, and Web3, delivering reliable infrastructure tailored to each sector's needs. The platform combines dedicated bare metal resources with flexible deployment options to help businesses balance performance, scalability, and cost. With high-performance networking, resource isolation, and global connectivity, Servers.com enables organizations to support mission-critical applications and demanding workloads. -
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ThreatLocker
ThreatLocker
ThreatLocker is a Zero Trust Platform that prevents cyber threats by blocking unknown applications, enforcing least privilege, and controlling what can run across your environment. Using Allowlisting, Ringfencing, Network Control, and more, ThreatLocker stops ransomware, zero-day attacks, and unauthorized activity before execution, rather than relying on detection after the fact. Built for modern IT and cybersecurity teams, the platform delivers centralized visibility and policy management across endpoints, users, and applications. ThreatLocker reduces attack surface, limits lateral movement, and supports compliance with detailed audit logs. With fast deployment, a large built-in application library, and streamlined approvals, organizations can strengthen security while minimizing operational overhead and maintaining business continuity. -
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Imunify360
CloudLinux, Inc.
Imunify360 is a security solution for web-hosting servers. Imunify360 goes beyond antivirus and WAF and is a combination of an Intrusion Prevention and Detection system, a Application Specific Web Application Firewall, Real-time Antivirus protection, a Network Firewall, and Patch Management components in one security suite. Imunify360 is a fully-automated solution and it collects all statistics under an intuitive dashboard.Starting Price: $12 -
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Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines some of the most advanced threat-hunting technologies: - Next-Gen Antivirus - Privileged Access Management - Application Control - Ransomware Encryption Protection - Patch & Asset Management - Email Security - Remote Desktop - Threat Prevention ( DNS based ) - Threat Hunting & Action Center With 9 modules working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.Starting Price: $0/month
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Zscaler
Zscaler
Zscaler, creator of the Zero Trust Exchange platform, uses the largest security cloud on the planet to make doing business and navigating change a simpler, faster, and more productive experience. The Zscaler Zero Trust Exchange enables fast, secure connections and allows your employees to work from anywhere using the internet as the corporate network. Based on the zero trust principle of least-privileged access, it provides comprehensive security using context-based identity and policy enforcement. The Zero Trust Exchange operates across 150 data centers worldwide, ensuring that the service is close to your users, co-located with the cloud providers and applications they are accessing, such as Microsoft 365 and AWS. It guarantees the shortest path between your users and their destinations, providing comprehensive security and an amazing user experience. Use our free service, Internet Threat Exposure Analysis. It’s fast, safe, and confidential. -
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FortiClient
Fortinet
Multilayered endpoint security with behavior based analysis for prevention against known and unknown threats. Complete real-time visibility of all your global software inventory. Here, there, anywhere. Cloud-delivered FortiClient endpoint protection service designed for small and medium-sized business. Integrated endpoint protection platform that provides automated next-generation threat protection, visibility and control of your software and hardware inventory across the entire security fabric. Identify & remediate vulnerable or compromised hosts across your attack surface. As a key piece of the Fortinet Security Fabric, FortiClient integrates endpoints into the fabric for early detection and prevention of advanced threats. Security events including zero-day malware, botnet detections, and vulnerabilities are reported in real-time. -
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WatchGuard Network Security
WatchGuard Technologies
Our products provide your security systems with complete, uncompromising visibility into your network. You will find that this helps to keep pace with increasing network speed and complexity, while gaining the insight needed to better detect and contain breaches, and achieve a rapid recovery. By implementing Network Critical solutions you can improve your existing security system's network performance, therefore increasing your ROI. Firstly, SPAN ports. These have been a long-term, insufficient, solution to network security. It is remarkably easy for hackers to infiltrate routers, switches and entire networks without detection. SPAN does not provide access to real-time information either, which is another key issue that may greatly affect your network's security. This is because SPAN ports groom your data, unlike Network TAPs, that act as a window, where you can look through at any time, in real-time. -
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Avast Small Business Solutions
Avast Business
Avast Small Business Solutions deliver next-gen endpoint protection for business Windows PCs, Mac, and Windows servers that you can manage anywhere via a web browser. Our robust, easy-to-use security for devices, data, and applications is designed to keep small organizations and their employees safer online. Avast antivirus with multiple layers of security, online privacy, and remote-control features provides powerful cybersecurity controlled via a cloud-based management console. Avast Small Business Solutions are managed via cloud-based management console Avast Business Hub and consist of: * Avast Essential Business Security * Avast Premium Business Security - combines our next-gen antivirus with VPN and USB control) * Avast Ultimate Business Security - award-winning next-gen antivirus with online privacy tools and patch management automation softwareStarting Price: $39.99/device/year -
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Barracuda CloudGen Firewall
Barracuda
Get comprehensive protection for on-premises and multi-cloud deployment using the firewall built in and for the cloud. Frictionless, cloud-hosted Advanced Threat Protection detects and blocks advanced threats, including zero-day and ransomware attacks. Gain rapid protection against the newest threats with the help of a global threat intelligence network fed by millions of data collection points. Modern cyber threats such as ransomware and advanced persistent threats, targeted attacks, and zero-day threats, require progressively sophisticated defense techniques that balance accurate threat detection with fast response times. Barracuda CloudGen Firewall offers a comprehensive set of next-generation firewall technologies to ensure real-time network protection against a broad range of network threats, vulnerabilities, and exploits, including SQL injections, cross-site scripting, denial of service attacks, trojans, viruses, worms, spyware, and many more. -
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Akamai Cloud
Akamai
Akamai Cloud (formerly Linode) is the world’s most distributed cloud computing platform, designed to help businesses deploy low-latency, high-performance applications anywhere. It delivers GPU acceleration, managed Kubernetes, object storage, and compute instances optimized for AI, media, and SaaS workloads. With flat, predictable pricing and low egress fees, Akamai Cloud offers a transparent and cost-effective alternative to traditional hyperscalers. Its global infrastructure ensures faster response times, improved reliability, and data sovereignty across key regions. Developers can scale securely using Akamai’s firewall, database, and networking solutions, all managed through an intuitive interface or API. Backed by enterprise-grade support and compliance, Akamai Cloud empowers organizations to innovate confidently at the edge. -
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Arista NG Firewall
Arista Networks
Arista NG Firewall is a modular, software-based network security platform designed to simplify protection and visibility for organizations with limited IT resources. It offers a browser-based, intuitive interface that provides real-time insights into network traffic and user behavior. The firewall proactively blocks malware, phishing, spam, and hacking attempts to safeguard devices and data. With features like content filtering, application shaping, VPN connectivity, and QoS management, it balances security with network performance. The platform integrates with ETM Dashboard for centralized network orchestration and remote management. Flexible deployment options include dedicated hardware, virtual machines, and cloud environments like AWS and Azure. -
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Fortinet
Fortinet
Fortinet is a global leader in cybersecurity solutions, known for its comprehensive and integrated approach to safeguarding digital networks, devices, and applications. Founded in 2000, Fortinet provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. At the core of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly integrates security tools to deliver visibility, automation, and real-time threat intelligence across the entire network. Trusted by businesses, governments, and service providers worldwide, Fortinet emphasizes innovation, scalability, and performance, ensuring robust defense against evolving cyber threats while supporting digital transformation and business continuity. -
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DDoS attacks saturate bandwidth, consume network resources, and disrupt application services. Can your infrastructure successfully fend them off? Advanced Firewall Manager mitigates network threats before they disrupt critical data center resources. Unifies application configuration with network security policy for tighter enforcement. Identifies and mitigates network, protocol, DNS threats, before they reach critical data center resources. Supports SNMP, SIP, DNS, IPFIX collectors, and protects log servers from being overwhelmed. Protects data center resources with purpose-built defenses augmented by F5 threat data. Understand traffic patterns into the data center with customizable reports and analytics. Mitigate sophisticated zero-day threats or gather critical forensics using F5 iRules. Defends your network infrastructure and mobile subscribers from attacks such as DDoS.
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ZoneAlarm Extreme Security NextGen
Check Point
ZoneAlarm for Business offers comprehensive, advanced, and flexible solutions for unmanaged businesses such as small businesses, Telco’s, government municipalities, and other businesses with little to no IT resources. With its easy deployment and maintenance, ZoneAlarm for Business offers you Check Point’s vigorous multi-platform protection and support, made simple. ZoneAlarm Extreme Security NextGen is the comprehensive, ultimate PC and mobile security solution for all your business security needs, using Check Point’s cutting-edge enterprise-grade technology. Next-gen antivirus with award-winning Anti-Ransomware, advanced phishing protection, and secure browsing experience. Our advanced cyber security solutions use business-class protection to secure millions of home users’ PCs and mobile devices against the latest worldwide cyber threats. This powerful weapon is extremely effective at spotting malicious files and cyberattacks that evade traditional antiviruses.Starting Price: $44.95 per year -
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Sophos UTM
Sophos
Sophos UTM drives threat prevention to unmatched levels. The artificial intelligence built into Sophos Sandstorm is a deep learning neural network, an advanced form of machine learning, that detects both known and unknown malware without relying on signatures. Sophos UTM 9.4 is one of the first Sophos products to offer our advanced next-gen cloud sandboxing technology. Sandstorm provides a whole new level of ransomware and targeted attack protection, visibility, and analysis. It can quickly and accurately identify evasive threats before they enter your network. And, it’s tremendous value: it’s enterprise-grade protection without the enterprise-grade price-tag or complexity. Harden your web servers and Microsoft Enterprise Applications against hacking attempts while providing secure access to external users with reverse proxy authentication. Full SMTP and POP message protection from spam, phishing and data loss with our unique all-in-one protection. -
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Azure Firewall
Microsoft
Azure Firewall is a managed, cloud-based network security service that protects your Azure Virtual Network resources. It's a fully stateful firewall as a service with built-in high availability and unrestricted cloud scalability. Azure Firewall is a managed, cloud-based network security service that protects your Azure Virtual Network resources. The stateful firewall service has built-in high availability and unrestricted cloud scalability to help you create, enforce, and log application and network connectivity policies across subscriptions and virtual networks. Simplify deployment and management of your network security with a scalable and highly available cloud native firewall. Centrally manage security across all virtual networks with a common set of network and application rules. -
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Sangfor Athena NGFW
Sangfor Technologies
Sangfor Athena NGFW is a next-generation firewall that provides comprehensive protection for network perimeters using AI-powered threat detection. It blocks over 99% of external threats in real time through cloud-delivered AI and integrates network and web application security into a single appliance. The firewall includes a built-in SOC Lite module for rapid threat assessment and incident response. Sangfor’s solution connects with a holistic security ecosystem, including endpoint protection, secure web gateways, and extended detection and response tools. Recognized for its proven security effectiveness, Athena NGFW holds top ratings in independent cybersecurity tests. It is trusted by enterprises across industries to safeguard valuable data and maintain stable network performance. -
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Alibaba Cloud Firewall
Alibaba Cloud
Cloud Firewall is one of the first SaaS firewalls deployed on the public cloud. It is your first choice for network security that safeguards your businesses in the cloud. Alibaba Cloud Firewall centrally manages the policies that control the traffic from the Internet to your businesses. It also controls the traffic between VPC networks, the traffic on Express Connect instances, and the traffic generated by VPN-based remote access. Cloud Firewall is embedded with an Intrusion Prevention System (IPS) and can detect outbound connections from your assets. Alibaba Cloud Firewall can also visualize network traffic and access between businesses as well as can store network traffic logs generated within the last six months. You can quickly activate Cloud Firewall without complex network configuration or image file installation. The firewalls are deployed in clusters to ensure high reliability. Smooth capacity expansion is supported. -
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Quantum Firewall Software R82
Check Point
New AI innovations prevent millions of new zero-day attacks, accelerate security for DevOps, and increase data center operational simplicity and scale. Quantum Firewall Software R82 provides uncompromising security and operational simplicity for Quantum on-premises and CloudGuard Network firewalls. AI-powered, adaptive threat prevention for novel and encrypted threats. Dynamic tools to accommodate rapidly changing environments. Automatically keep up with business growth & unpredictable traffic spikes. NIST-certified encryption to protect against quantum computing hacking. Find hidden relationships and traffic patterns to prevent novel malicious campaigns and brand impersonation. Increases the effectiveness of website categorization to make the most of your security policies. R82 delivers powerful new protection from the most evasive phishing, malware, and DNS attacks, even in encrypted traffic. -
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Check Point Spark Firewall
Check Point Software
Check Point Spark Firewall is an AI-powered next-generation firewall solution designed specifically for small and medium-sized businesses and managed service providers seeking enterprise-grade cybersecurity protection. The platform delivers advanced threat prevention, malware protection, phishing defense, IoT security, SD-WAN functionality, and secure connectivity through an all-in-one network security appliance. With AI-driven threat intelligence and a malware block rate of up to 99.9%, Spark Firewall helps organizations defend against evolving cyber threats while maintaining high network performance. The solution supports simplified deployment through zero-touch provisioning, cloud-based management, and centralized policy administration, making it easier to manage distributed environments. Integrated features such as Wi-Fi 7, optional 5G connectivity, dual ISP support, and automated failover provide reliable and resilient business connectivity. -
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SonicWall Next Generation Firewall
SonicWall
Advanced threat protection, from small businesses to global enterprises and cloud environments. Discover network security made boundless. Whether you’re a small business or a large enterprise, whether in your home or in the cloud, SonicWall next-generation firewalls (NGFW) provide the security, control and visibility you need to maintain an effective cybersecurity posture. SonicWall’s award-winning hardware and advanced technology are built into each firewall to give you the edge on evolving threats. With solutions designed for networks of all sizes, SonicWall firewalls are designed to meet your specific security and usability needs, all at a cost that will protect your budget while securing your network. The SonicWall NSv Series virtual firewall offers you all the security advantages of a physical firewall with the operational and economic benefits of virtualization, including system scalability and agility, speed of system provisioning, simple management and cost reduction. -
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AWS Firewall Manager
Amazon
AWS Firewall Manager is a security management service which allows you to centrally configure and manage firewall rules across your accounts and applications in AWS Organization. As new applications are created, Firewall Manager makes it easy to bring new applications and resources into compliance by enforcing a common set of security rules. Now you have a single service to build firewall rules, create security policies, and enforce them in a consistent, hierarchical manner across your entire infrastructure. Using AWS Firewall Manager, you can easily roll out AWS WAF rules for your Application Load Balancers, API Gateways, and Amazon CloudFront distributions. Similarly, you can create AWS Shield Advanced protections for your Application Load Balancers, ELB Classic Load Balancers, Elastic IP Addresses and CloudFront distributions. Finally, with AWS Firewall Manager, you can enable security groups for your Amazon EC2 and ENI resource types in Amazon VPCs. -
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Menlo Security
Menlo Security
Our platform invisibly protects users wherever they go online. So threats are history and the alert storm is over. Explore the key ingredients that make the Menlo Security platform so secure, seamless, and simplified. Fueling our unique approach to security, the Elastic Isolation Core protects against known and unknown threats, and isolates them before they get to users. Zero Trust isolation provides 100% protection with no need for special software or plug-ins, so users experience no impact on performance or interruption in workflow. Cloud-native and high performance, the Elastic Edge is built to scale globally on demand. It dynamically scales to meet enterprise-level growth—from 1000 users to over 3M— with no performance hit, and is easily extendible with a rich set of APIs and integrations. -
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Check Point Cloud Firewall
Check Point Software
Check Point Cloud Firewall is a cloud-native network security solution that provides advanced threat prevention and unified security management across public, private, and hybrid cloud environments. The platform helps organizations secure cloud workloads, applications, and network traffic with enterprise-grade protection against malware, ransomware, zero-day attacks, and other sophisticated cyber threats. Designed to simplify cloud adoption, it enables businesses to extend existing on-premises security policies and controls into cloud environments while maintaining centralized visibility and management. The solution integrates with infrastructure-as-code tools, APIs, and CI/CD workflows to automate security deployment and streamline cloud operations. Unified management capabilities provide consistent policy enforcement, monitoring, reporting, and control across hybrid infrastructures from a single platform. -
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Cipafilter
Cipafilter
Cipafilter’s reports show you top visited sites, most active users, suspicious activity, and more. You can easily navigate these reports to find exactly what you want and see exactly where your users have been. Can you tell what site or student is using most of your bandwidth? What are the top searches in your school? How do you print out a single users web history? Answer these questions and more with Cipafilter's comprehensive reporting tools. Tracking internet usage on various device types is frustrating. Even basic information can become impossible to find. You’re either given too little information or way too much. Both make it difficult to clearly see what’s happening on your network. Use any device on or off your network with full reporting capabilities. Our InSite™ reports provide a clear, concise picture of internet activity. You're able to review group or individual browsing histories. Reports have never been easier to run for all your devices. -
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VMware vDefend Distributed Firewall
Broadcom
Stop the lateral spread of threats across multi-cloud environments with a software-based Layer 7 firewall distributed at each workload. Threat actors moving throughout your infrastructure and increasingly sophisticated ransomware attacks make east-west the new battleground. Get the advantage with a software-defined Layer 7 firewall that delivers granular enforcement at scale to secure east-west traffic across today’s multi-cloud world. Easily segment the network, stop the lateral spread of threats, and securely move at the speed of development on your path to Zero Trust. Gain visibility across all network flows to easily achieve granular micro-segmentation and generate context-aware policies for each workload. Reduce the attack surface and defend against known and unknown threats moving within and across clouds with a modern, distributed firewall solution that is purpose-built to secure multi-cloud traffic across virtualized workloads. -
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NSFOCUS NGFW
NSFOCUS
As the digital attack surface grows, both the volume and sophistication of cyberattacks increase. The resulting data theft and network disruptions can both threaten your reputation and business, a comprehensive security solution is an absolute necessity in every IT infrastructure. NSFOCUS delivers a fully integrated Next Generation Firewall (NGFW) to meet the changing needs of your cloud-enabled enterprise network. It provides NGFW capabilities and collaborates with other security devices to proactively defend against cyber threats, and improve user and application experience while lowering the total cost of ownership. A dedicated AI-based content moderation module effectively recognizes content in texts, images, and videos. Use honeypots and AI algorithms to trap attacks. AI algorithms recognize attacks and apps in encrypted traffic. Scalable AI-based AV engine increases virus detection rate. -
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AWS Network Firewall
Amazon
With AWS Network Firewall, you can create firewall rules that provide fine-grained control over network traffic and easily deploy firewall security across your VPCs. Automatically scale your network firewall to protect your managed infrastructure. Protect your unique workloads with a flexible engine that can define thousands of custom rules. Centrally manage security policies across existing accounts and VPCs and automatically enforce mandatory policies on new accounts. With AWS Network Firewall, you can define firewall rules that provide fine-grained control over network traffic. Network Firewall works together with AWS Firewall Manager so you can build policies based on Network Firewall rules and then centrally apply those policies across your virtual private clouds (VPCs) and accounts. Inspect traffic flows using features such as inbound encrypted traffic inspection, stateful inspection, protocol detection, and more. -
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Centralize and simplify your firewall admin and intrusion prevention. With visibility across ever-changing and global networks, you can manage modern applications and malware outbreaks in real-time. Easily switch between managing hundreds of firewalls, controlling applications, and blocking intrusion attempts and the spread of malware. Write a policy and scale its enforcement across multiple security controls within your network. Enjoy unified management and control over firewalls, applications, intrusion prevention, and file and malware protection. Comprehensibly manage your firewalls using our on-premises hardware or from any virtual environment of your choice. Flexibly deploy the same manager on your public cloud infrastructure, or boost productivity one step further with our cloud-delivered solution. Detect the most sophisticated threats sooner across all vectors and prioritize by impact for faster responses.
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PAN-OS
Palo Alto Networks
PAN-OS is Palo Alto Networks’ ML-powered next-generation firewall operating system that delivers core network security capabilities in a single, high-performance platform. It features App-ID, a patented traffic classification engine that automatically discovers and controls new and evasive applications, and Content-ID, which scans all network traffic in a single pass for comprehensive threat protection without sacrificing throughput. The Cloud Identity Engine aggregates and synchronizes user identities across multiple identity providers, enabling consistent, point-and-click zero-trust authentication and authorization. Device-ID maintains policy enforcement for devices regardless of IP changes or location, providing full context for security, decryption, QoS, and authentication policies. The OS employs post-quantum cryptographic algorithms and Quantum-resistant VPNs to safeguard against future decryption threats.
