Compare the Top Free IT Security Software as of November 2025

What is Free IT Security Software?

IT security software is designed to protect information technology (IT) systems, networks, and data from cyber threats, such as malware, hacking, and unauthorized access. These tools provide various features such as antivirus protection, firewalls, encryption, intrusion detection and prevention systems, and vulnerability management to ensure the integrity, confidentiality, and availability of sensitive information. IT security software helps organizations detect, prevent, and respond to security incidents, mitigate risks, and ensure compliance with industry regulations. It is critical for businesses and individuals to safeguard against cyberattacks, data breaches, and other security vulnerabilities. Compare and read user reviews of the best Free IT Security software currently available using the table below. This list is updated regularly.

  • 1
    Google Cloud Platform
    Google Cloud Platform offers robust IT security tools to protect cloud workloads, including identity management, encryption, and threat detection. GCP’s multi-layered approach ensures that businesses can secure their infrastructure, data, and applications. With tools like Google Cloud Identity & Access Management (IAM) and Google Cloud Security Command Center, businesses can manage risks and compliance. New customers receive $300 in free credits to run, test, and deploy workloads, making it easier to evaluate the platform's IT security features at no upfront cost. GCP’s security tools include automated patch management, vulnerability scanning, and secure authentication, which help mitigate risks and reduce the threat surface. The platform is also designed to meet stringent compliance standards, ensuring that businesses can secure their cloud environments while adhering to industry regulations.
    Leader badge
    Starting Price: Free ($300 in free credits)
    View Software
    Visit Website
  • 2
    Cloudflare

    Cloudflare

    Cloudflare

    Cloudflare is the foundation for your infrastructure, applications, and teams. Cloudflare secures and ensures the reliability of your external-facing resources such as websites, APIs, and applications. It protects your internal resources such as behind-the-firewall applications, teams, and devices. And it is your platform for developing globally scalable applications. Your website, APIs, and applications are your key channels for doing business with your customers and suppliers. As more and more shift online, ensuring these resources are secure, performant and reliable is a business imperative. Cloudflare for Infrastructure is a complete solution to enable this for anything connected to the Internet. Behind-the-firewall applications and devices are foundational to the work of your internal teams. The recent surge in remote work is testing the limits of many organizations’ VPN and other hardware solutions.
    Leader badge
    Starting Price: $20 per website
    View Software
    Visit Website
  • 3
    KACE by Quest

    KACE by Quest

    Quest Software

    KACE® by Quest supports your unified endpoint management (UEM) strategy by helping you discover and track every device in your environment, automate administrative tasks, keep compliance requirements up-to-date and secure your network from a range of cyberthreats. Discover, manage and secure all your endpoints from one console as you co-manage your traditional and modern endpoints, including Windows, Mac, Linux, ChromeOS, and iOS and Android devices. KACE is a Unified Endpoint Management solution that offers a single point of control for managing IT systems across the entire organization, inside or outside your network. This comprehensive solution takes the stress out of keeping devices secure and compliant so you can do more.
    Starting Price: As low as $3/mo/device
  • 4
    Artica Proxy

    Artica Proxy

    Artica Tech

    Artica project began in 2004 and stemmed from ideas about how to improve the Open Source security solutions available at the time, which were difficult and often expensive to implement and maintain. Artica provides a Powerful user-friendly Web interface and it’s designed to allow every IT administrator, with or without Linux knowledges, to install and maintain network service, like Proxy service, Reverse-Proxy service, DNS service, DNS Filter service, Firewall service, IDS service, SMTP service and more. Today, with around 110.000 servers installed worldwide, Artica solutions are used from small to large enterprises and in Public Government Services
    Starting Price: €100
  • 5
    Enzoic for Active Directory
    Say goodbye to weak and compromised passwords with Enzoic for Active Directory—a simple, automated solution that keeps your organization secure without the hassle. Designed to work quietly in the background, Enzoic makes password protection effortless. - Effortless Security: Automatically screens and protects passwords 24/7. - Real-Time Breach Protection: Continuously updates to block passwords exposed in breaches. - Comprehensive Coverage: Secures entire credential sets, not just passwords. - User-Friendly Guidance: Blocks weak passwords like "123456" and helps users create safer ones. - Easy Compliance: Achieve NIST 800-63B compliance effortlessly. - Simple UX: Optional Windows client provides feedback without overwhelming IT teams. Backed by a cutting-edge database of billions of compromised passwords and updated daily, Enzoic ensures your organization stays ahead of security threats. Simplify security, protect your business, and empower your IT team with Enzoic.
    Starting Price: $0
  • 6
    Edgenexus Load Balancer (ADC/WAF/GSLB)
    Choose us because we offer the easiest to use technology without sacrificing features or performance. We back this up with outstanding support and care, delivered under a fair and cost effective pricing model Our technology is used by the smallest startups with big ideas and small budgets all the way to global enterprises and anything in between. We love them all the same! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the Only true ADP Application Delivery Platform where the functionality and lifespan can be enhanced using the app store or applications that you develop in house.
    Starting Price: $50
  • 7
    Keyfactor EJBCA
    EJBCA is an Enterprise grade PKI platform capable of issuing and managing digital certificates in the billions. One of the most used PKI platforms globally, it is used by governments and large enterprises across all sectors. PKI shouldn't be complex. Simplify it, with EJBCA® Enterprise, the only PKI platform that deploys fast, runs anywhere, and scales on-demand — so you can issue and manage thousands, even billions of certificates, no problem. Powered by the most trusted and widely used open-source PKI, EJBCA Enterprise empowers teams to establish trust with identity-first security for every human and machine, anywhere. Replace legacy CA solutions with a flexible and scalable PKI platform to issue and manage certificates for devices, workloads, and users. Embed certificate-based identity into thousands or millions of connected products with a fast and scalable PKI solution.
  • Previous
  • You're on page 1
  • Next