Best Free IT Security Software
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Compare the Top Free IT Security Software as of December 2025
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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.
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1
New Relic
New Relic
Strengthen IT Security with New Relic: Safeguard your enterprise with advanced threat detection and resilient protection. Elevate your IT security posture with New Relic’s robust observability platform, designed to provide software engineer practitioners with comprehensive visibility and control over your security landscape. Our solution offers real-time monitoring and advanced threat detection, empowering you to proactively identify and address vulnerabilities before they impact your business. Seamlessly integrate security insights with your broader IT operations to ensure compliance, minimize risks, and protect critical assets. Enhance your incident response capabilities, streamline security management, and align your security strategy with organizational objectives. With New Relic, fortify your enterprise against evolving threats and drive a culture of proactive security and resilience.Starting Price: Free -
2
Site24x7
ManageEngine
ManageEngine Site24x7 is a comprehensive observability and monitoring solution designed to help organizations effectively manage their IT environments. It offers monitoring for back-end IT infrastructure deployed on-premises, in the cloud, in containers, and on virtual machines. It ensures a superior digital experience for end users by tracking application performance and providing synthetic and real user insights. It also analyzes network performance, traffic flow, and configuration changes, troubleshoots application and server performance issues through log analysis, offers custom plugins for the entire tech stack, and evaluates real user usage. Whether you're an MSP or a business aiming to elevate performance, Site24x7 provides enhanced visibility, optimization of hybrid workloads, and proactive monitoring to preemptively identify workflow issues using AI-powered insights. Monitoring the end-user experience is done from more than 130 locations worldwide.Starting Price: $9.00/month -
3
Aikido Security
Aikido Security
Secure your code, cloud, and runtime in one central system. Aikido’s all-in-one security platform is loved by developers and security teams alike with full security visibility, insight in what matters most, and fast/automatic vulnerability fixes. Teams get security done with Aikido thanks to: - False-positive reduction - AI Autotriage & AI Autofix - Deep integration into the dev workflow (from IDEs and task managers to CI/CD gating) - AI Pentests - Automated Compliance Aikido covers the entire Software Development Lifecycle (SDLC), including: static application security testing (SAST), dynamic application security testing (DAST), infrastructure-as-code (IaC), container scanning, secrets detection, open source license scanning (SCA), cloud posture management (CSPM), runtime protection, AI pentests, and more.Starting Price: Free -
4
Guardz
Guardz
Guardz is the unified cybersecurity platform purpose-built for MSPs. We consolidate the essential security controls, including identities, endpoints, email, awareness, and more, into one AI-native framework designed for operational efficiency. Our identity-centric approach connects the dots across vectors, reducing the gaps that siloed tools leave behind so MSPs can see, understand, and act on user risk in real time. Backed by an elite research and threat hunting team, Guardz strengthens detection across environments, turning signals into actionable insights. With 24/7 AI + human-led MDR, Guardz utilizes agentic AI to triage at machine speed while expert analysts validate, mitigate, and guide response, giving MSPs scalable protection without adding headcount. Our mission is simple: give MSPs the scale, confidence, and clarity they need to stay ahead of attackers and deliver protection to every SMB they serve. -
5
Control D
Control D
Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. - Block malicious threats - Block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more) - Deploy in minutes on fleets of devices using RMM - Manage clients using sub-organizations - Gain visibility on network events and usage patterns, with client level granularity - Re-route traffic via proxies (through DNS) for improved privacy and security - Enjoy superior UX and simplicity Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.Starting Price: $2/month -
6
Unimus
NetCore j.s.a. (Unimus)
Unimus is a powerful, on-premise Network Automation and Configuration Management (NCM) solution designed for fast deployment and ease of use. As one of the most versatile NCM solutions available, it simplifies network management with features such as: 🔹 Disaster Recovery – Automated configuration backups ensure business continuity. 🔹 Change Management – Detect, review, and audit configuration changes with real-time notifications. 🔹 Configuration Auditing – Instantly search and validate configurations & run-time state across your entire network. 🔹 Network Automation – Push large-scale configuration changes or perform firmware upgrades in minutes. 🔹 Integrated Device CLI – Access device terminals directly within Unimus. Supporting 400+ device types across 150+ vendors, Unimus is a complete network-agnostic NCM solution that eliminates manual errors, enhances security, and accelerates network operations—without requiring programming expertise.Starting Price: $5.90 per device per year -
7
Graylog
Graylog
Graylog is a centralized log management and IT security platform that helps teams monitor, investigate, and secure complex environments with confidence. It collects and analyzes log data from servers, applications, networks, and cloud infrastructure to surface security issues, misconfigurations, and operational risks in real time. Designed for efficiency, Graylog reduces noise with normalized data, targeted alerts, and guided workflows—so IT and security teams can quickly understand what’s happening and take action. Flexible deployment options support on-prem, cloud, and hybrid environments, while selective ingestion and intelligent data tiering keep storage and licensing costs predictable. With open integrations, built-in dashboards, and powerful search, Graylog gives IT teams clear visibility, faster troubleshooting, and stronger security—without complexity or vendor lock-in.Starting Price: $1250/month -
8
Plaid
Plaid
Plaid is a global fintech infrastructure platform that enables businesses and consumers to securely connect to financial data and services. Through APIs that connect to more than 12,000 financial institutions across 20+ countries, Plaid operates the world’s largest open banking data network. By removing the complexity of direct bank integrations, Plaid enables developers, financial institutions, and enterprises to build secure, user-friendly, and conversion-optimized financial products. Plaid powers payments, lending, identity verification, fraud prevention, and personal finance applications. Today, more than 100 million people worldwide, including half of U.S. adults, have relied on Plaid through their connections to over 7,000 apps and services.Starting Price: Free -
9
Thinfinity Workspace
Cybele Software, Inc.
Thinfinity® Workspace 7 is a comprehensive, secure platform that offers a zero-trust approach, enabling secure and contextual access to corporate virtual desktops, virtual applications, internal web apps, SaaS, and files, whether they are on Windows, Linux, or mainframes. It supports various deployment models, including cloud, on-premise, and hybrid settings, and can be deployed on any cloud provider of your choice. With its proprietary reverse gateway technology, Thinfinity® Remote Workspace 7 ensures secure reverse connections over SSL with TLS 1.3 encryption. This robust approach doesn't require client-side installations, firewall modifications, or the opening of inbound ports on your network, thereby enhancing the security infrastructure of your business. The platform ensures all browser-based connections are secured over HTTPS, offering a wide variety of authentication options, from straightforward User/Password to sophisticated Active Directory authentication. -
10
FusionAuth
FusionAuth
FusionAuth is a modern, developer-focused identity and access management platform built to give you full control over your authentication stack. Whether you’re building a startup app or managing enterprise-scale infrastructure, FusionAuth delivers all the must-have features — from login and SSO to advanced protocols like OAuth2, OIDC, SAML, and WebAuthn — in a self-hostable or cloud-native package. Designed with developers in mind, FusionAuth integrates seamlessly with any language, framework, or architecture. Every capability is API-first and built for extensibility, so you can tailor authentication workflows without getting locked into rigid, inflexible systems. FusionAuth supports all the key use cases — user registration, multi-factor authentication (MFA), passwordless login, role-based access control, and more — while helping you stay compliant with GDPR, HIPAA, PCI, and other regulatory standards.Starting Price: $0 -
11
Kasm Workspaces
Kasm Technologies
Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm uses our high-performance streaming and secure isolation technology to provide web-native Desktop as a Service (DaaS), application streaming, and secure/private web browsing. Kasm is not just a service; it is a highly configurable platform with a robust developer API and devops-enabled workflows that can be customized for your use-case, at any scale. Workspaces can be deployed in the cloud (Public or Private), on-premise (Including Air-Gapped Networks or your Homelab), or in a hybrid configuration.Starting Price: $0 Free Community Edition -
12
QuantaStor
OSNexus
QuantaStor is a unified Software-Defined Storage platform designed to scale up and out to make storage management easy while reducing overall enterprise storage costs. With support for all major file, block, and object protocols including iSCSI/FC, NFS/SMB, and S3, QuantaStor storage grids may be configured to address the needs of complex workflows which span sites and datacenters. QuantaStor’s storage grid technology is a built-in federated management system which enables QuantaStor servers to be combined together to simplify management and automation via CLI and REST APIs. The layered architecture of QuantaStor provides solution engineers with unprecedented flexibility and application design options that maximizes workload performance and fault-tolerance for a wide range of storage workloads. QuantaStor includes end-to-end security coverage enabling multi-layer data protection “on the wire” and “at rest” for enterprise and cloud storage deployments.Starting Price: $/TB based on scale -
13
Fraud.net
Fraud.net, Inc.
Fraudnet's AI-driven platform empowers enterprises to prevent threats, streamline compliance, and manage risk in real-time. Our sophisticated machine learning models continuously learn from billions of transactions to identify anomalies and predict fraud attacks. Our unified solutions: comprehensive screening for smoother onboarding & improved compliance, continuous monitoring to proactively identify new threats, & precision fraud detection across channels and payment types. With dozens of data integrations and advanced analytics, you'll dramatically reduce false positives while gaining unmatched visibility. And, with no-code/low-code integration, our solution scales effortlessly as you grow. The results speak volumes: Leading payments companies, financial institutions, innovative fintechs, and commerce brands trust us worldwide—and they're seeing dramatic results: 80% reduction in fraud losses and 97% fewer false positives. Request your demo today and discover Fraudnet. -
14
10Duke Enterprise
10Duke
10Duke Enterprise is a cloud-based, scalable and flexible software licensing solution enabling software vendors to easily configure, manage and monetize the licenses they provide to their customers in real-time. 10Duke enables you to gain a single point of license control for desktop, SaaS, and mobile apps, APIs, VMs and devices. It’s cloud-native, supports all license models, integrates with CRM & Ecommerce, has a built-in Customer Identity Management solution, and supports offline scenarios. 10Duke Enterprise is used by SMBs and Fortune 500 customers alike, and is SOC2 compliant. 10Duke Enterprise is used across a wide range of industries by the fastest-growing software vendors that offer desktop, SaaS and mobile apps, devices, APIs and VMs. It's specifically designed for fast-growing software businesses looking to scale up licensing & minimize friction. 10Duke Enterprise is used around the world by leading brands including Trimble, Causeway, Seequent, Maxon and SteinbergStarting Price: $199/month -
15
ProHoster
ProHoster
ProHoster.Info - Hosting is a service to provide resources for publishing information on a server, which is always on the Internet. The websites are hosted and stored on our servers which provide with the necessary technology in order to view the website on the internet. By purchasing the website hosting from us, you are also provided with a free domain name, DDoS protection, and an SSL certificate. Fast and reliable unlimited hosting with DDOS protection and free chips, such as the website builder, SSL certificate, and domain. For projects, where regular hosting is not enough, and you need a larger amount of resources and functionality. Virtualization such as KVM and OVZ is available. An excellent solution for non-standard projects with increased requirements for power and full root access. Professional DDoS protection against any type of attack. Immediate response and display of the threats. Huge channel handling capacity.Starting Price: $2.50 per month -
16
Pandora FMS
Pandora FMS
With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS gives you the agility to find and solve problems quickly, scaling them so they can be derived from any source, on-premise, multi cloud or both of them mixed. Now you have that capability across your entire IT stack and analytics to find any problem, even the ones that are hard to find. Thanks to more than 500 plugins available, you can control and manage any application and technology, from SAP, Oracle, Lotus, Citrix or Jboss to VMware, AWS, SQL Server, Redhat, Websphere, etc.Starting Price: €90/month -
17
ManageEngine Applications Manager
ManageEngine
ManageEngine Applications Manager is an enterprise-ready platform designed to monitor an entire application ecosystem of a business organization. Our platform helps IT and DevOps teams get visibility into all the dependent components within their application stack. With Applications Manager, it becomes easier to monitor the performance of mission-critical web applications, web servers, databases, cloud services, middleware, ERP systems, messaging components, and more. It has tons of features that fast-track the troubleshooting process and help reduce MTTR. This way, issues are fixed before application end-users are affected. Applications Manager has a fully functional dashboard that can be customized to get performance insights at a glance. By configuring alerts, it constantly keeps a lookout for performance issues within the application stack. Combining this with intelligent machine learning, Applications Manager helps turn performance data into actionable insights.Starting Price: $395.00/Year -
18
RECOGNITO
RECOGNITO
RECOGNITO is a global leader and trusted provider of Face Biometrics and ID Document Verification solutions that are fully optimized for usability, security, and privacy. Recognito SDK is the world's leading face-based identity verification solution with NIST FRVT Top Algorithm. - Product • Face Recognition SDK: 🏆 NIST FRVT Top 1 Face Recognition Algorithm • Face Liveness Detection SDK: DeepFake Detectable, 2D/3D Liveness Detection Algorithm • ID Document Verification SDK: ID, Passport Document OCR and MRZ, Barcode Analysis - Features • On-premise, Fully offline and On-device SDK • Compact Library-type SDK for easy on-premise installation. • Simple and comprehensive API.Starting Price: Free -
19
MIRACL
MIRACL
World's fastest MFA with the highest login success rate above 99%. Highly secure, password-free login in just two seconds. MIRACL works on any device or browser, removing the barriers to authentication to optimise the the user experience, decrease costs, and win lost revenue. Protect your users. Simplify their journey. MIRACL Trust offers a safer, smoother authentication experience. One step. No passwords. No problem. Traditional multi-factor authentication is slow and cumbersome. MIRACL is a smoother, safer alternative to traditional MFA. 2 seconds to log in with error rates as low as 1/10th that of passwords. No passwords necessary. One PIN, and you’re in. Our cryptographic technology means that user info stays with users. MIRACL Trust offers an effortless login experience that puts users first, rolls out hassle-free, and keeps data locked up tight. PSD2 SCA compliant, GDPR compliant and satisfies NJ Gaming MFA requirements. -
20
ManageEngine Network Configuration Manager
ManageEngine
Network Configuration Manager is a multi-vendor network change, configuration and compliance management (NCCM) solution for switches, routers, firewalls and other network devices. NCM helps automate and take total control of the entire life cycle of device configuration management. Schedule device configuration backups, track user activity and spot changes by comparing configuration versions all from a centralized web GUI. Monitor configuration changes, get instant notifications and prevent unauthorized changes to make your networking environment secure, stable and compliant. Define standard practices and policies, check device configurations for violations and readily apply remedial measures to ensure device compliance. Save time by automating repetitive, time-consuming configuration management tasks and also by centrally applying configuration changes to devices in bulk.Starting Price: $238 -
21
Relianoid
Relianoid
Designed to elevate your online services to unparalleled levels of performance, reliability, and security, our ADC solution ensures seamless traffic distribution, enhanced resource utilization, and fortified protection against potential cyber threats. Providing you massive scalability, high availability, and increased security for your services, applications, and networks. Unlimited throughput, connections, farms, and optimized for multi-core with broad hardware compatibility. No need for installation that allows a quick production consolidation, ensuring a seamless deployment process. Integrated easily in your infrastructure ensuring a productive and cost-saving setup and maintenance. Sharing hardware resources reduces costs associated with physical hardware, making it a budget-friendly option. Ready for 64 bits platforms in order to provide better performance and a more robust environment. It permits to assign more resources in terms of performance than other architectures.Starting Price: $1,356 one-time payment -
22
MyChat
Network Software Solutions
Secure instant messaging system with own server that can work in local area network and over the Internet. Providing collaboration tools for employee engagement. Built-in knowledge base, important notifications with return receipts, Bulletin board, broadcast messages, flexible server management, the system for user rights to access MyChat features, voice/video calls, screen sharing calls, Kanban project management, conferences, private dialogues, extended contact list, available for all platforms: Windows, macOS, Linux, Android, iOS, WEB.Starting Price: $6/per user/one-time -
23
Hexnode UEM
Mitsogo Inc
Hexnode, the enterprise software division of Mitsogo Inc., is a Unified Endpoint Management solution with cross-platform functionalities. Hexnode supports all major operating systems, including iOS, iPadOS, Android, Windows, macOS, tvOS, Linux, ChromeOS, visionOS, Apple TV, Android TV, and fireOS, and offers out-of-the-box enrollment methods. The entire device lifecycle, starting from enrollment to device retirement, can be monitored and managed from a unified console. Features such as automated device enrollment, geofencing, Remote Monitoring and Management, patch management, and a simple and intuitive UI makes it the perfect tool for device management. In addition, Hexnode offers a wealth of tools perfect for today's increasingly mobile, modern teams, which includes an intuitive dashboard for greater visibility and control over mobile devices across the enterprise, web filtering for security, location tracking, and so much more. -
24
GateKeeper Enterprise
Untethered Labs, Inc.
Passwordless, proximity login to PCs, Macs, websites, and desktop applications. Hands-free, wireless 2FA and password manager through active proximity-detection. IT admins can dynamically allow users to log in to their computers and websites with a physical key either automatically, by touch, by pressing Enter, or with a PIN. Seamlessly login, switch users, switch computers, and logout without passwords, touch, or trouble - just a key. Once a user walks away, the computer will lock, blocking access to the computer and web passwords. With continuous authentication, users are always being checked to ensure that they require access. No more typing passwords. Admins and compliance can now automate password security from a central admin console: enforce stronger passwords, enforce 2FA, and give employees the power of password-free login without interrupting workflow. Reduce helpdesk tickets related to forgotten passwords/password resets. Login and auto-lock with proximity.Starting Price: $3/user/month -
25
CacheGuard
CacheGuard Technologies
CacheGuard-OS transforms a virtual or bare metal machine into a powerful and easy to handle network appliance. It's a Linux based Operating System built from scratch and especially designed to Secure and Optimize the network traffic. Great care has been taken by CacheGuard-OS developers to select the best of the best Open Source technologies to integrate into CacheGuard-OS. The result is a robust and trustworthy solution that can be up and running within minutes. CacheGuard-OS integrates Open Source software such as but not limited to OpenSSL, NetFilter, IProute2, StrongSwan, ClamAV, Apache, ModSecurity, Squid and Open Source developments made by CacheGuard-OS developers.Starting Price: $9.99 per month -
26
Xecrets Ez
Axantum Software AB
Xecrets Ez is an easy to use personal desktop application for file encryption available for Windows, Mac and Linux. It is compatible with AxCrypt, in fact it is based on the exact same code, but is less complex and is entirely focused on delivering the core functionality needed without the bells and whistles. For personal daily use it's a great alternative to AxCrypt at a significantly lower cost. Xecrets Ez does not require installation, privileges or Internet. It allows you to encrypt, decrypt and open files for editing with single clicks or drag and drop with a clean and simple user interface. It is a fully integrated frontend to Xecrets Cli, an open source and free command line program that does all the heavy lifting with encryption, decryption and secure wiping. The command line can also be downloaded and used separately for scripting and integration into other software.Starting Price: €15/year -
27
System Frontier
Noxigen
PowerShell web front end with role based access control, auditing and remote management tools. Delegate granular permissions to manage servers, workstations, network devices and user accounts. Privileged Access Management (PAM). Let System Frontier do all the heavy lifting so you can focus on your enabling your IT teams to get more done without having more permissions than needed.Starting Price: $5 -
28
SparkView
beyond SSL
Fast, secure and reliable remote access to desktops, applications and servers. SparkView offers a simple and secure way to connect untrusted devices to your desktops and applications. The ZTNA solution with no installation on the client provides secure remote access from any device with a browser. All via HTML5 technology. The solution for remote office / mobile work and home office. Best web RDP client - advantages of SparkView: - ZTNA compliant remote access to applications, desktops and servers - Access from any device with browser (e.g. Chrome, Firefox, Edge, Opera, Safari, etc.) - No installation on clients or the target systems - One central point for administration, security and authorization - HTML5 technology - Flexible, stable and scalable - Low support and management overhead - Supports common protocols such as RDP, SSH, Telnet, VNC and HTTP(S) - No Java, no Flash, no ActiveX, no plugin, no rolloutStarting Price: $60 per year -
29
ActivTrak
Birch Grove Software
ActivTrak helps enterprises drive operational efficiency through AI-powered workforce intelligence. Its award-winning platform transforms work activity data into actionable insights for workforce management, workforce productivity and workforce planning — enabling measurable ROI and stronger business outcomes. More than 9,500 organizations trust ActivTrak's technology, recognized by Deloitte's Technology Fast 500, Inc. 5000, TrustRadius, and G2. Backed by Sapphire Ventures and Elsewhere Partners, ActivTrak leads the way in privacy-first workforce data that fuels the future of intelligent work.Starting Price: $10/user/month billed annually -
30
Paessler PRTG
Paessler GmbH
Paessler PRTG is an all-inclusive monitoring software solution developed by Paessler. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine, PRTG optimizes connections and workloads as well as reduces operational costs by avoiding outages while saving time and controlling service level agreements (SLAs). The solution is packed with specialized monitoring features that include flexible alerting, cluster failover solution, distributed monitoring, in-depth reporting, maps and dashboards, and more. PRTG monitors your entire IT infrastructure. All important technologies are supported: • SNMP: ready-to-use and custom options • WMI and Windows Performance Counters • SSH: for Linux/Unix and macOS systems • Traffic analysis using flow protocols or packet sniffing • HTTP requests • REST APIs returning XML or JSON • Ping, SQL, and many moreStarting Price: $2149 for PRTG 500
