Best Firewall Software in the UK
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Compare the Top Firewall Software in the UK as of April 2026
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What is Firewall Software in the UK?
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 in the UK currently available using the table below. This list is updated regularly.
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ThreatLocker
ThreatLocker
The ThreatLocker suite of security tools are powerful and designed so that everyone from businesses to government agencies to academic institutions can directly control exactly what applications run on their networks. We envision a future in which all organizations can chart their own course free from the influence of cybercriminals and the damage their incursions cause, and our team of veteran cybersecurity professionals created ThreatLocker to make this vision a reality. The team at ThreatLocker has been developing cybersecurity tools for decades, including programs to enhance email and content security, and this is our most innovative and ambitious cybersecurity solution yet. We developed this unique cybersecurity system because we believe that organizations should have complete control of their networks and should not have to live in fear of the next malware attack. To learn more, visit ThreatLocker.com. -
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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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IPFire
IPFire
IPFire is a hardened, versatile, state-of-the-art Open Source firewall based on Linux. Its ease of use, high performance in any scenario, and extensibility make it usable for everyone. Security is the highest priority in IPFire. It is hardened to protect itself from attacks from the Internet and prevents attacks on your network. Its powerful firewall engine and intrusion prevention system protect your network against attacks from the Internet and denial-of-service attacks. IPFire is free software developed by an open community and trusted by hundreds of thousands of users from all around the world. The primary objective of IPFire is security. It's easy to configure a firewall engine and an intrusion prevention system stops any attackers from breaking into your network. In the default configuration, the network is split into various zones with different security policies such as a LAN and DMZ to manage risks inside the network and have a custom configuration for specific needs.Starting Price: Free -
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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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Unprotected web applications and APIs are the easiest point of entry for hackers and vulnerable to a number of attack types. FortiWeb's AI-enhanced and multi-layered approach protects your web apps from the OWASP Top 10 and more. FortiWeb ML customizes the protection of each application, providing robust protection without requiring the time-consuming manual tuning required by other solutions. With ML, FortiWeb identifies anomalous behavior and, more importantly, distinguishes between malicious and benign anomalies. The solution also features robust bot mitigation capabilities, allowing benign bots to connect (e.g. search engines) while blocking malicious bot activity. FortiWeb also features API discovery and security, as well as threat analytics to identify meaningful security incidents. FortiWeb is available as an appliance, VM, and fully featured WAF-as-a-Service - which is available to trial and purchase in most cloud marketplaces.Starting Price: $30/mo for 1 app on SaaS
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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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Protectstar Firewall AI
Protectstar
Android Firewall is not only ready to use in seconds but also protects you from hacker attacks and notifies you when an app tries to send data to the internet. Get a real-time view of which apps are accessing which servers or wasting mobile data. With simple filter rules, you can even allow or deny certain connections of an app. With the firewall, you can monitor and block this data traffic. You can also completely block the online access of an app. The AI Android firewall can block unwanted access from known intelligence agencies and government organizations. With our built-in Intrusion Prevention System (IPS), all known servers and IP addresses of the FBI, CIA, NSA, GCHQ, and many more are automatically blocked. If there is an access attempt, you will receive a special warning. Firewall AI protects you from spy servers in countries like China, Iran, and Russia, as well as mobile trackers.Starting Price: $9.90 per year -
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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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Falcon Firewall Management
CrowdStrike
Falcon Firewall Management makes it easy to create, manage and enforce policies with a simple, centralized approach. Defend against network threats, and gain instant visibility to enhance protection and inform action.Delivered via the same lightweight Falcon agent, management console and cloud-native architecture, it deploys and is operational in minutes. Simplifies operations by using the same lightweight Falcon agent, management console and cloud-native architecture. Deploys and is operational in minutes without requiring reboots, fine-tuning or complex configuration. Streamlines workflows and increases visibility across endpoint security controls due to the single management console for both endpoint protection and host firewall management. Automatically identify and view specific activities, potential threats and network anomalies. -
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MobileWall
CyberReef
Businesses working anywhere and everywhere means skyrocketing mobile data usage. Expanding device models and operating systems. Increasing risks of unsecured mobile wireless connections. Runaway mobile data expenses. With CyberReef’s patented MobileWall cloud firewall service, you can reduce total data usage by 50-70 percent using built-in bandwidth management tools. Use any SIM-based device, get end-to-end encryption of traffic on your cellular connections, and track and control data use and costs. MobileWall gives your business unprecedented security, visibility, and control over your mobile data. MobileWall provides your business with secure mobile wireless connections. MobileWall offers insights into your corporate mobile data usage. MobileWall automates the management of your mobile data usage and costs. MobileWall’s patented cloud-based firewall enables your business to leverage mobile wireless connections securely using any SIM-based device.Starting Price: $3 per month -
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AP Lens
AP Lens
AP Lens is a Sandbox Browser that isolates networks using DNS Whitelisting. We stop the attack before it reaches the network. What does AP Lens provide? - Web Filtering: Flexible and user-friendly content blocking. - Anti-Phishing: Stop look-alike domains with 100% accuracy. - Ransomware Protection: Isolate the network without affecting business applications. - Secure Remote Work: Enforce internet usage policies without VPN slowness. - No More 0-Day Attacks: Escape the limits of blacklisting with AP Lens Augmented Whitelist. - Compliant: AP Lens meets regulatory requirements requested by cybersecurity insurance policies. - One-Click Installation: No need for a lengthy setup process or updating from the user's side. - No Maintenance: Stop malware and phishing without continuous monitoring. Our team builds on over 20 years of experience in cyber security, cloud security, and information protection in industries such as private banking and the public sector.Starting Price: $5 -
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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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WebOrion Protector Plus
cloudsineAI
WebOrion Protector Plus is a GPU-powered GenAI firewall engineered to provide mission-critical protection for generative AI applications. It offers real-time defenses against evolving threats such as prompt injection attacks, sensitive data leakage, and content hallucinations. Key features include prompt injection attack protection, safeguarding intellectual property and personally identifiable information (PII) from exposure, content moderation and validation to ensure accurate and on-topic LLM responses, and user input rate limiting to mitigate risks of security vulnerability exploitation and unbounded consumption. At the core of its capabilities is ShieldPrompt, a multi-layered defense system that utilizes context evaluation through LLM analysis of user prompts, canary checks by embedding fake prompts to detect potential data leaks, pand revention of jailbreaks using Byte Pair Encoding (BPE) tokenization with adaptive dropout. -
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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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CyberCision
FirstWave
CyberCision by FirstWave is a comprehensive cybersecurity-as-a-service platform designed for service providers and telcos. It enables businesses to offer robust security services, including email, web, and firewall protection, to their customers without the need for dedicated infrastructure. The platform provides multi-tenant capabilities, centralized management, and global scalability, making it ideal for service providers looking to expand their security offerings. With automated features, real-time threat intelligence, and frictionless activation, CyberCision delivers affordable, enterprise-grade protection to end-users while simplifying security operations. -
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CrowdSec
CrowdSec
CrowdSec is a free, open-source and collaborative IPS to analyze behaviors, respond to attacks & share signals across the community, outnumbering cybercriminals all together. Set up your own intrusion detection system. Apply behavior scenarios to identify cyber threats. Share and benefit from a crowdsourced and curated cyber threat intelligence system. Define the type of remediation you want to apply and where. Leverage the community’s IP blocklist and automate your security. CrowdSec is designed to run seamlessly on virtual machines, bare-metal servers, containers or to be called directly from your code with our API. Our strength comes from our cybersecurity community that is burning cybercriminals’ anonymity. By sharing IP addresses that aggressed you, you help us curate and redistribute a qualified IP blocklist to protect everyone. CrowdSec is 60x faster than tools like Fail2ban and can parse massive amounts of logs in no time. -
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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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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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Check Point Quantum Spark
Check Point
Quantum Spark tackles challenges faced by SMBs with a comprehensive, user-friendly cybersecurity solution, ideal for both SMBs and MSPs, ensuring top performance and robust protection. Quantum Spark next-generation firewalls deliver AI-powered threat prevention performance up to 5 Gbps with a 99.8% block rate of cyberattacks, scalable network security for a wide range of use cases, zero-touch provisioning for easy setup, and integrated cloud security services like IoT and SD-WAN, with consolidated cloud management for MSPs. Spark offers a diverse selection of next-generation firewalls, providing threat prevention performance suitable for any small or medium-sized business, up to 5 Gbps. Network efficiency at any SMB scale with optimal port density options to accommodate various use cases. Autonomous IoT security, ensuring your connected devices are protected without added complexity. -
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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. -
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Corsa Security
Corsa Security
Many large network owners still want a ‘private network’ approach for their network security to ensure data privacy, data sovereignty and low latency that meets their business needs and regulatory compliance requirements. But when it comes to on-premise firewalls, not much has evolved beyond introducing bigger and bigger hardware appliances. Corsa Security offers the first turnkey network security virtualization solution that helps large enterprises and service providers scale threat protection and automate firewall virtualization, at much lower total cost of ownership (TCO) by replacing their physical firewalls with virtual ones. By tightly integrating firewall virtualization with intelligent orchestration, the Corsa Security Orchestrator provides an aggregated view of all your virtual firewalls while managing their infrastructure health, capacity and performance.
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