Best Firewall Software with a Free Trial

Compare the Top Firewall Software with a Free Trial as of October 2026

What is Firewall Software with a Free Trial?

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 with a Free Trial currently available using the table below. This list is updated regularly.

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    ThreatLocker

    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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  • 2
    WatchGuard Network Security

    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 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 software
    Starting Price: $39.99/device/year
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    Barracuda CloudGen Firewall
    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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    Check Point CloudGuard

    Check Point CloudGuard

    Check Point Software

    The Check Point CloudGuard platform provides you cloud native security, with advanced threat prevention for all your assets and workloads – in your public, private, hybrid or multi-cloud environment – providing you unified security to automate security everywhere. Prevention First Email Security: Stop zero-day attacks. Remain ahead of attackers with unparalleled global threat intel. Leverage the power of layered email security. Native Solution, at the Speed of Your Business: Fast, straightforward deployment of invisible inline API based prevention. Unified Solution for Cloud Email & Office Suites: Granular insights and clear reporting with a single dashboard and license fee across mailboxes and enterprise apps. Check Point CloudGuard provides cloud native security for all your assets and workloads, across multi-clouds, allowing you to automate security everywhere, with unified threat prevention and posture management.
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    ZoneAlarm Extreme Security NextGen
    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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    VyOS

    VyOS

    VyOS Networks

    VyOS Networks is the global leader in open networking for organizations that need secure, scalable, automated networking across bare metal, cloud, and edge. Designed with flexibility and scalability in mind, VyOS provides an enterprise-grade networking platform for consistent operations and automation at scale, delivering full control and high performance with zero vendor lock-in. Our mission is to restore ownership of network infrastructure to our users through transparent, vendor-neutral networking. VyOS Universal Router provides a single, consistent networking layer across all of them: • Same operating system • Same configuration model • Same CLI and APIs • Same automation workflows • Same operational model across tenants and regions Your network, your rules.
    Starting Price: $7500
  • 8
    enforza

    enforza

    enforza

    The cost-effective alternative to AWS Network Firewall, Azure Firewall, and cloud-native NAT Gateways. Same features. Less cost. No data processing charges. enforza is a cloud-managed firewall platform that helps you build a unified multi-cloud perimeter with powerful firewall, egress filtering and NAT Gateway capabilities. With easy cloud management at its core, enforza is truly multi-cloud, enabling you to apply consistent security policies across multiple clouds and regions. - Install the agent on *your* linux instance (cloud or on-prem) with one command. - Claim your device on the portal. - Manage your policies.
    Starting Price: $39/month/gateway
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    Sophos UTM
    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
    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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