Best Free IT Security Software of 2026

The CLEAR™ Cryptosystem is a FIPS-140-3 validated encryption SDK designed to secure files, streaming media, databases, and network communications with cutting-edge, programmable encryption technology. Fully compatible with all modern computing platforms, CLEAR™ provides a simple, turnkey solution for integrating advanced encryption into existing security systems. With Post-Quantum Cryptography (PQC) capabilities, it delivers future-proof protection against emerging cybersecurity threats, ensuring your data is secured with the strongest available encryption methods. Key Features: • PQC Encryption Strength ( 512bit - 10,240bit) • Ultra Low-Latency Streaming (< 11µs / Packet) • Hyperkey™ Technology with embedded ACL • Multi-Factor / Bio-Metric Symmetric Keys • Plug-N-Play Entropy - CSRNG, QRNG, HRNG Benefits: • Pass cybersecurity audits with best-in-class tools • Share data securely via Sharepoint, Dropbox, etc. • Protect legacy gear and outdated network equipment • Extend protection to files in 3rd party portals • Future lasting power - long-term data archival

Enhance IT Security with New Relic: Protect your organization with cutting-edge threat detection and robust safeguards. Boost your IT security framework using New Relic's powerful observability platform, which offers software engineers extensive visibility and control over your security environment. Our solution features real-time monitoring and sophisticated threat detection, enabling you to proactively spot and mitigate vulnerabilities before they affect your operations. Effortlessly integrate security insights into your overall IT management to maintain compliance, reduce risks, and secure essential assets. Improve your incident response strategies, streamline security processes, and align your security initiatives with your organizational goals. With New Relic, strengthen your enterprise's defenses against emerging threats and cultivate a proactive security and resilience mindset.

ManageEngine's Endpoint Central, formerly Desktop Central, is a Unified Endpoint Management Solution that manages enterprise mobility management, including all features of mobile app management and mobile device management, as well as client management for a wide range of endpoints such as mobile devices, laptops computers, tablets, servers, and other machines. ManageEngine Endpoint Central allows users to automate their desktop management tasks such as installing software, patching, managing IT assets, imaging, and deploying OS.

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

Chrome Enterprise offers a comprehensive suite of advanced security measures that are essential for modern enterprise IT security frameworks. With features like sandboxing, site isolation, and real-time Safe Browsing notifications, Chrome effectively shields users from various online dangers such as malware, ransomware, and phishing attacks. Organizations can manage and personalize security settings through the Admin console, enabling them to implement strict browsing policies, limit extensions, and ensure adherence to both internal guidelines and regulatory standards. Additionally, Chrome's security capabilities work seamlessly with endpoint protection and identity management systems, creating a robust defense mechanism. This multifaceted security strategy empowers organizations to proactively counteract emerging threats while preserving operational flexibility, and it facilitates easier compliance with regulations like GDPR and HIPAA, among others.

Cloud-based solution for observability that helps businesses manage and track workload and performance through a single dashboard. Monitor all the services you run on your cloud without compromising cost, granularity or scale. Groundcover is a cloud-native APM solution that makes observability easy so you can focus on creating world-class products. Groundcover's proprietary sensor unlocks unprecedented granularity for all your applications. This eliminates the need for costly changes in code and development cycles, ensuring monitoring continuity.

Aikido is the all-in-one security platform for development teams to secure their complete stack, from code to cloud. Aikido centralizes all code and cloud security scanners in one place. Aikido offers a range of powerful scanners including static code analysis (SAST), dynamic application security testing (DAST), container image scanning, and infrastructure-as-code (IaC) scanning. Aikido integrates AI-powered auto-fixing features, reducing manual work by automatically generating pull requests to resolve vulnerabilities and security issues. It also provides customizable alerts, real-time vulnerability monitoring, and runtime protection, enabling teams to secure their applications and infrastructure seamlessly.

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 respond to user risk in real time. 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.

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. With Control D you can: block malicious threats, block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more), redirect traffic using transparent proxies and gain visibility on network events and usage patterns, with client level granularity. 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.

Unimus is a powerful network automation, configuration backup, and change management solution designed to simplify network operations for businesses of all sizes. Supporting 450+ device types across 160+ vendors, Unimus is a network-agnostic platform that eliminates manual network tasks while enhancing security and reliability. With automated configuration backups, Unimus ensures seamless disaster recovery, giving IT teams quick access to historical versions and real-time change tracking. Its network auditing features provide instant visibility into configuration consistency, compliance, and security risks. Change management is simplified with automatic change detection, detailed version history, and customizable notifications. Unimus' intuitive web-based interface makes it easy to manage networks without requiring deep technical expertise, while its integrated CLI access allows for real-time troubleshooting and command execution. Whether you're looking to automate bulk configuration changes, perform firmware upgrades, or improve network visibility, Unimus provides a scalable, cost-effective solution for modern network infrastructures.

At ACI Learning, we don’t just teach IT and cybersecurity—we prepare you to thrive in the real world. Our expert-led videos, immersive labs, and certification prep turn learning into action so you gain the skills that truly matter. myACI, our dynamic training platform, connects knowledge to performance with gamified elements, progress tracking, and powerful analytics for teams and managers alike. Scalable, flexible, and trusted by companies worldwide, ACI Learning helps you build skills, boost retention, and prove ROI with every training initiative.

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. Plaid supports a wide range of industries and financial workflows, including: Banks & credit unions, Payouts streamline disbursements, and Pay by Bank supports direct consumer-to-business payments for recurring bills, subscriptions, and eCommerce, Mortgages & lending, Government & public sector programs, Property management, Gaming, Crypto & Digital Assets, Business finances, and Wealth Management. Customers include Venmo, Robinhood, Rocket, Carvana, Affirm, Invitation Homes, and many more. Plaid is built with enterprise-grade encryption, continuous monitoring, and regulatory compliance, including PSD2 in Europe and FCA requirements in the UK. Plaid does not hold funds but enables secure data transfer and payment initiation. Plaid provides trusted infrastructure across payments, identity verification, fraud prevention, account connectivity, and open banking. With scale, security, and mobile-first design, Plaid helps businesses create seamless and secure financial experiences for millions of consumers worldwide.

Safetica Intelligent Data Security protects sensitive enterprise data wherever your team uses it. Safetica is a global software company that provides Data Loss Prevention and Insider Risk Management solutions to organizations. ✔️ Know what to protect: Accurately pinpoint personally identifiable information, intellectual property, financial data, and more, wherever it is utilized across the enterprise, cloud, and endpoint devices. ✔️ Prevent threats: Identify and address risky activities through automatic detection of unusual file access, email interactions, and web activity. Receive the alerts necessary to proactively identify risks and prevent data breaches. ✔️ Secure your data: Block unauthorized exposure of sensitive personal data, trade secrets, and intellectual property. ✔️ Work smarter: Assist teams with real-time data handling cues as they access and share sensitive information.

Thinfinity Workspace 7.0's Technical Highlights: - Progressive Web App (PWA) technology for a seamless user experience - Integrated Thinfinity VNC, VirtualUI, and z/Scope for maximum versatility - HTML5 terminal emulation supporting DEC terminals, TN 5220, and TN 3270 protocols - Robust enterprise-grade audit logs for security and compliance management - Proprietary VNC protocol for real-time monitoring and troubleshooting IMPROVE USER EXPERIENCE - Deliver business-critical apps, desktops and files from a single web portal. - Provide simplified remote browser access for your users, while confining them to only the resources that they need. SIMPLIFY IT AND AVOID VPNs - Forget traditional VPN deployments and complexities. - Enable access from Chromebooks, mobile devices or any computer with a Web Browser. Zero setup. KEEP YOUR BUSINESS SECURE - Use enterprise-grade encrypted connections. - Integrate with your existing and external identity platforms. - Apply 2FA or MFA policies with all identity providers.

Consolidate your team's resources in a well-structured workspace that is organized, version-controlled, and simple to share. While Air securely stores your content, it also offers intelligent search capabilities, guest access, customizable layouts, version tracking, and effortless sharing, enhancing every aspect of the creative journey. Don't let your valuable assets languish in folders and zip files; instead, plan social media campaigns, develop streamlined presentations, and arrange your materials in a workspace that embodies your brand identity. Effortlessly navigate your workspace using features akin to a search engine, where tools like image recognition and smart tags empower all team members to independently find assets. The only challenging element of the feedback process will now be the feedback itself, as you can create public boards that allow guests to upload directly to your workspace. Engage in commentary, initiate discussions, and make selections with context, all while staying updated on new modifications and clearly tracking the most recent version of each asset. This streamlined approach not only boosts collaboration but also fosters creativity within your team.

FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API. Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around. Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably. Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.

Grafana Labs delivers the leading AI-powered observability platform, built around Grafana—the most widely adopted open source technology for dashboards and visualization. Recognized as a Leader in the 2025 Gartner® Magic Quadrant™ for Observability Platforms, Grafana Labs supports more than 25 million users and thousands of organizations worldwide, from startups to Fortune 500 enterprises. Grafana Cloud is the open observability cloud, designed to help engineering teams observe everything and solve anything. Built on open source, open standards, and open ecosystems, it unifies metrics, logs, traces, and profiles in a single platform for full-stack visibility across applications, infrastructure, and digital experiences. At the core is the open-source LGTM stack: Grafana for dashboards and visualization, Mimir for metrics, Loki for logs, and Tempo for distributed tracing. Native OpenTelemetry and Prometheus support allow teams to ingest telemetry from virtually any environment, while hundreds of integrations connect existing tools and data sources without costly rip-and-replace migrations. Grafana Cloud combines powerful analytics with AI-driven observability. Grafana Assistant helps engineers investigate issues, explore telemetry, and troubleshoot faster. Adaptive Telemetry identifies the data that matters most and aggregates the rest, helping organizations reduce telemetry costs while preserving valuable insights . With solutions for Kubernetes monitoring, application observability, digital experience monitoring, incident response, synthetic monitoring, and performance testing, Grafana Cloud delivers a complete observability platform that scales with your business.

Engineered for peak performance and efficient resource use, KrakenD can manage a staggering 70k requests per second on just one instance. Its stateless build ensures hassle-free scalability, sidelining complications like database upkeep or node synchronization. In terms of features, KrakenD is a jack-of-all-trades. It accommodates multiple protocols and API standards, offering granular access control, data shaping, and caching capabilities. A standout feature is its Backend For Frontend pattern, which consolidates various API calls into a single response, simplifying client interactions. On the security front, KrakenD is OWASP-compliant and data-agnostic, streamlining regulatory adherence. Operational ease comes via its declarative setup and robust third-party tool integration. With its open-source community edition and transparent pricing model, KrakenD is the go-to API Gateway for organizations that refuse to compromise on performance or scalability.

Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm is revolutionizing the way businesses deliver digital workspaces. We use our open-source web native container streaming technology to create a modern devops delivery of Desktop as a Service, application streaming, and browser isolation. Kasm is more than a service. It is a platform that is highly configurable and has a robust API that can be customized to your needs at any scale. Workspaces can be deployed wherever the work is. It can be deployed on-premise (including Air-Gapped Networks), in the cloud (Public and Private), or in a hybrid.

ADManager Plus is an effortless and user-friendly solution for managing and reporting on Windows Active Directory (AD), designed to assist both AD administrators and help desk staff with their daily operations. Featuring a centralized and user-friendly web interface, this software addresses a range of intricate tasks, including the bulk management of user accounts and various AD objects, delegation of role-based access to help desk personnel, and the generation of a comprehensive array of AD reports, many of which are critical for compliance audit purposes. Additionally, this Active Directory tool provides mobile applications that enable AD administrators and technicians to carry out essential user management functions from their smartphones or tablets while on the go. It simplifies the process of creating multiple users and groups in Office 365, managing licenses, establishing Exchange mailboxes, migrating existing mailboxes, setting storage limits, and adding proxy addresses, thereby enhancing overall efficiency. With its robust features, ADManager Plus stands out as a vital asset for organizations aiming to streamline their AD management processes.

Both IT teams and end users are afflicted by password reset tickets. IT teams will often push more urgent issues down the queue to ensure that users don't have their work put on hold while their passwords reset. Password reset tickets can be costly if they aren't addressed promptly. Nearly 30 percent of all help desk tickets were caused by forgotten passwords. It is not surprising that large companies have spent more than $1 million to resolve password-related help desk requests. It is a good habit to change passwords regularly, as it helps prevent cyberattacks caused by stolen credentials. Security experts recommend that administrators ensure that users change their passwords regularly and have password expiration policies in place.

ADAudit Plus enhances the security and compliance of your Windows Server environment by delivering comprehensive insights into all operational activities. It offers a detailed overview of modifications made to Active Directory (AD) resources, encompassing AD objects and their respective attributes, group policies, and more. By conducting thorough AD audits, organizations can identify and mitigate insider threats, misuse of privileges, and other signs of potential security breaches, thereby bolstering their overall security framework. The tool enables users to monitor intricate details within AD, including entities such as users, computers, groups, organizational units (OUs), group policy objects (GPOs), schemas, and sites, along with their associated attributes. Furthermore, it tracks user management activities like the creation, deletion, password resets, and alterations in permissions, providing insights into the actions taken, the responsible individuals, the timing, and the originating locations. Additionally, it allows organizations to monitor the addition or removal of users from security and distribution groups, ensuring that access privileges are kept to the necessary minimum, which is critical for maintaining a secure environment. This level of oversight is vital for proactive security management and compliance adherence.

EventLog Analyzer from Manage Engine is the industry's most affordable security information and event management software (SIEM). This cloud-based, secure solution provides all essential SIEM capabilities, including log analysis, log consolidation, user activity monitoring and file integrity monitoring. It also supports event correlation, log log forensics and log retention. Real-time alerting is possible with this powerful and secure solution. Manage Engine's EventLog Analyzer allows users to prevent data breaches, detect the root cause of security issues, and mitigate sophisticated cyber-attacks.

QuantaStor, a unified Software Defined Storage platform, is designed to scale up and down to simplify storage management and reduce overall storage costs. QuantaStor storage grids can be configured to support complex workflows that span datacenters and sites. QuantaStor's storage technology includes a built-in Federated Management System that allows QuantaStor servers and clients to be combined to make management and automation easier via CLI and RESTAPIs. QuantaStor's layered architecture gives solution engineers unprecedented flexibility and allows them to design applications that maximize workload performance and fault tolerance for a wide variety of storage workloads. QuantaStor provides end-to-end security coverage that allows multi-layer data protection for cloud and enterprise storage deployments.

Don't let fraud erode your bottom line, damage your reputation, or stall your growth. FraudNet's AI-driven platform empowers enterprises to stay ahead of threats, streamline compliance, and manage risk at scale—all in real-time. While fraudsters evolve tactics, our platform detects tomorrow's threats, delivering risk assessments through insights from billions of analyzed transactions. Imagine transforming your fraud prevention with a single, robust platform: comprehensive screening for smoother onboarding and reduced risk exposure, continuous monitoring to proactively identify and block new threats, and precision fraud detection across channels and payment types with real-time, AI-powered risk scoring. Our proprietary machine learning models continuously learn and improve, identifying patterns invisible to traditional systems. Paired with our Data Hub of dozens of third-party data integrations, you'll gain unprecedented fraud and risk protection while slashing false positives and eliminating operational inefficiencies. The impact is undeniable. Leading payment companies, financial institutions, innovative fintechs, and commerce brands trust our AI-powered solutions worldwide, and they're seeing dramatic results: 80% reduction in fraud losses and 97% fewer false positives. With our flexible no-code/low-code architecture, you can scale effortlessly as you grow. Why settle for outdated fraud and risk management systems when you could be building resilience for future opportunities? See the Fraud.Net difference for yourself. Request your personalized demo today and discover how we can help you strengthen your business against threats while empowering growth.