Best Free IT Security Software of 2026 - Page 2

Find and compare the best Free IT Security software in 2026

Use the comparison tool below to compare the top Free IT Security software on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

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    Air Reviews

    Air

    Air.inc

    $25 per month
    845 Ratings
    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.
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    FusionAuth Reviews
    Top Pick
    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.
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    Chainguard Reviews
    Chainguard Containers provide a trusted set of minimal, zero-CVE container images with a top-tier CVE remediation SLA—addressing critical vulnerabilities within 7 days, and high, medium, and low within 14—enabling teams to build and deploy software more confidently. As modern development workflows and CI/CD pipelines depend on secure, up-to-date containers for cloud-native applications, Chainguard offers streamlined images built entirely from source in a hardened, secure build environment. Designed for both engineering and security stakeholders, Chainguard Containers reduce the manual overhead of managing vulnerabilities, improve application resilience by shrinking the attack surface, and accelerate go-to-market by simplifying alignment with compliance standards and customer security expectations.
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    Grafana Cloud Reviews
    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.
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    EasyDMARC Reviews
    Top Pick
    EasyDMARC is a cloud-based DMARC solution for securing domains and email infrastructure, protecting organizations against phishing attacks, and more: Brand Protection Our email protection SaaS platform stops hackers from sending phishing emails to customers from company names, gaining access to accounts, and stealing personal information. Increased Email Deliverability EasyDMARC informs receiving mail servers that emails are legitimate and authentic, ensuring they’re delivered to the inbox instead of blocked or sent to spam. Visibility Into Cyber Threats EasyDMARC helps to successfully monitor every aspect of your email authentication and enforce effective protection from phishing attacks thanks to its advanced reporting capability. Business Email Compromise (BEC) Protection Most people have seen emails pretending to be from the CEO, CFO, or another executive in their organization. EasyDMARC prevents business email compromise and keeps your company reputation on the highest level․ EasyDMARC’s deliverability tool, EasySender, covers all the aspects of email deliverability. The variety of features on the platform cover email list verification, mailbox warmup, and inbox placement.
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    Source Defense Reviews
    Source Defense is an essential element of web safety that protects data at the point where it is entered. Source Defense Platform is a simple, yet effective solution to data security and privacy compliance. It addresses threats and risks that arise from the increased use JavaScript, third party vendors, and open source code in your web properties. The Platform offers options for securing code as well as addressing an ubiquitous gap in managing third-party digital supply chains risk - controlling actions of third-party, forth-party and nth-party JavaScript that powers your website experience. Source Defense Platform provides protection against all types of client-side security incidents, including keylogging, formjacking and digital skimming. Magecart is also protected. - by extending the web security beyond the browser to the server.
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    KrakenD Reviews
    Top Pick
    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.
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    PowerDMARC Reviews
    PowerDMARC is a robust email security solution that safeguards your brand reputation and email communications from threats like spoofing, phishing, and ransomware. By leveraging advanced technologies such as DMARC, SPF, DKIM, BIMI, MTA-STS, and TLS-RPT, PowerDMARC empowers you to protect your email infrastructure. With a user-friendly platform, PowerDMARC simplifies complex configurations, enabling you to easily manage and monitor your email security posture. AI-powered threat intelligence provides valuable insights to proactively identify and mitigate emerging threats. Trusted by over 2000 organizations globally, including Fortune 100 companies and governments, PowerDMARC is your trusted partner in securing your email infrastructure.
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    Kasm Workspaces Reviews
    Top Pick

    Kasm Workspaces

    Kasm Technologies

    $0 Free Community Edition
    125 Ratings
    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.
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    ManageEngine ADAudit Plus Reviews
    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.
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    ManageEngine ADSelfService Plus Reviews

    ManageEngine ADSelfService Plus

    ManageEngine

    $595 for 500 domain users/year
    122 Ratings
    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.
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    ManageEngine Log360 Reviews
    Log360 is a SIEM or security analytics solution that helps you combat threats on premises, in the cloud, or in a hybrid environment. It also helps organizations adhere to compliance mandates such as PCI DSS, HIPAA, GDPR and more. You can customize the solution to cater to your unique use cases and protect your sensitive data. With Log360, you can monitor and audit activities that occur in your Active Directory, network devices, employee workstations, file servers, databases, Microsoft 365 environment, cloud services and more. Log360 correlates log data from different devices to detect complex attack patterns and advanced persistent threats. The solution also comes with a machine learning based behavioral analytics that detects user and entity behavior anomalies, and couples them with a risk score. The security analytics are presented in the form of more than 1000 pre-defined, actionable reports. Log forensics can be performed to get to the root cause of a security challenge. The built-in incident management system allows you to automate the remediation response with intelligent workflows and integrations with popular ticketing tools.
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    ManageEngine EventLog Analyzer Reviews
    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.
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    ManageEngine ADManager Plus Reviews
    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.
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    QuantaStor Reviews

    QuantaStor

    OSNexus

    $/TB based on scale
    6 Ratings
    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.
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    TrafficGuard Reviews
    Top Pick

    TrafficGuard

    TrafficGuard

    Free for up to $2.5k ad spend
    89 Ratings
    With TrafficGuard, you can put an end to the worry of polluted traffic disrupting your campaign success. Our advanced ML/AI-powered technology identifies and blocks both simple and complex fraudulent traffic in real time, ensuring your ad spend targets genuine, high-quality clicks and conversions. This leads to better campaign outcomes and an enhanced return on ad spend (ROAS). This robust solution safeguards every dollar of your advertising budget, allowing you to concentrate on reaching your marketing objectives without stress. Let TrafficGuard handle ad fraud protection, so you can confidently manage your: Google Search (PPC) campaigns Mobile user acquisition campaigns Affiliate spending Social media advertising In addition to our technology, we provide expert campaign management and exceptional customer support, making us a reliable partner for all your ad fraud protection needs.
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    Fraud.net Reviews
    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.
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    10Duke Enterprise Reviews
    10Duke Enterprise is a cloud-based, scalable and flexible software licensing solution designed to enable software vendors to easily configure, manage and monetize the licenses they provide to their customers. 10Duke Enterprise 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 SOC 2 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. › Unlock 15-30%+ revenue from your existing customers › Prevent revenue leakage by means of a real-time licensing and access control solution › Vastly reduce internal license admin costs (up to 70%) › Improve how your customers can trial and access your products › Learn how and when your customers are using your licenses and product features to help drive license sales › Prevent revenue leakage by means of a real-time licensing and access control solution › Integrate with 3rd party systems like CRM & ecommerce
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    Curtain LogTrace File Activity Monitoring Reviews

    Curtain LogTrace File Activity Monitoring

    Coworkshop Solutions

    Free with limited functions
    4 Ratings
    In the daily work environment, companies often need to authorize their employees to access and use sensitive company data. However, most companies lack visibility into how their employees are actually utilizing this data, and whether any misuse is occurring. At the same time, companies have to meet internal audit requirements and comply with various data security regulations and policies. This creates a need for the IT department to find ways to effectively monitor and record how employees are accessing and using the company’s data resources. Curtain LogTrace provides enterprise-wide file activity monitoring. It tracks user actions: create, copy, move, delete, rename, print, open, close, save. Includes source/destination paths and disk type. Perfect for monitoring user file activities. Key Features: - File log (create & delete file) - File log (copy & move file) - File log (print & rename file) - App log (save, open & close file) - Support MySQL & MS SQL - Watermark for printout - Central administration - Integration with Active Directory - Uninstall password for client - Password management - Admin delegation - Self protection for the software
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    Curtain MonGuard Screen Watermark Reviews

    Curtain MonGuard Screen Watermark

    Coworkshop Solutions

    Free with limited functions
    7 Ratings
    Curtain MonGuard Screen Watermark is an enterprise solution for displaying screen watermarks that administrators can enable on users' computers. This screen watermark can display various user information, such as the computer name, username, and IP address. The purpose of this watermark is to effectively grab the user's attention and serve as a reminder before they take a screenshot or photograph the screen to share the information with others. The key benefit of Curtain MonGuard is that it encourages users to "think before sharing" sensitive information. If the content being shared contains confidential company data, the watermark can help trace the source of the leaked information back to the user responsible. This allows organizations to hold users accountable and mitigate the consequences of data breaches or unauthorized information sharing. Key features: - On-screen watermark - Full screen-watermark - Application screen-watermark - Supports over 500 Applications - Self-defined content of watermark - Screen-watermark by condition - Central administration - Integration with Active Directory - Uninstall password for client - Password management - Admin delegation - Self protection for the software
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    ActivTrak Reviews

    ActivTrak

    Birch Grove Software

    $10/user/month billed annually
    5 Ratings
    ActivTrak is a cloud-native workforce intelligence platform that transforms work activity data into actionable insights for employee monitoring, productivity and performance management, and workforce planning capabilities that deliver measurable ROI. Deployment is quick and easy — start collecting data in minutes.
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    Google Authenticator Reviews
    Top Pick
    Google Authenticator produces 2-Step Verification codes directly on your mobile device. This additional layer of security enhances the protection of your Google Account by necessitating a second verification step during the login process. Alongside your password, you will need a code that the Google Authenticator app generates on your phone. By using your Google Account, you can conveniently and securely access a multitude of websites and services, while also maintaining clear control over your privacy preferences. To further safeguard your account, utilize the Security Checkup tool, which offers tailored advice and actionable steps to bolster your account's security. It's crucial to understand that compromised passwords are far more prevalent than one might assume. Two-step verification serves as a formidable defense against unauthorized access, requiring that you complete an additional verification step after entering your password, thus significantly enhancing your account's safety. With this method, you can have greater peace of mind knowing that your information is better protected.
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    Cisco Duo Reviews
    Top Pick

    Cisco Duo

    Cisco

    $3 per user per month
    12 Ratings
    Secure your workforce with powerful, simple access security. We are Cisco Duo. Our modern access security system is designed to protect all users, devices, applications, so you can focus on what you do best. Secure access for all users and devices, in any environment, from any location. You will enjoy the peace of mind that only total device visibility and trust can provide. A SaaS solution that natively protects all applications and is easy to deploy, scaleable and quick to respond to threats. Duo's access security protects all applications from compromised credentials and devices. It also provides comprehensive coverage that helps you meet compliance requirements. Duo integrates natively with applications to provide flexible, user friendly security that is easy to implement and manage. It's a win-win-win for administrators, users, and IT staff. Multi-factor authentication, dynamic device trust and adaptive authentication are key components of your zero-trust journey. Secure SSO is also a part of the mix.
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    ProHoster Reviews
    Top Pick

    ProHoster

    $2.50 per month
    60 Ratings
    ProHoster.Info - Hosting is a service that allows you to publish information on a server that is always accessible via the Internet. Our servers host the websites and provide the technology necessary to view them on the internet. You will also receive a domain name, DDoS protection and an SSL certificate when you purchase website hosting from us. Unlimited hosting that is reliable and fast with DDOS protection. Also, you get a free domain name, SSL certificate, website builder, and domain. You will need more resources and functionality for projects where regular hosting is not sufficient. Virtualization, such as KVM or OVZ, is possible. This is a great solution for non-standard projects that have higher power requirements and require full root access. Professional DDoS protection against all types of attacks. Rapid response and display of threats. Huge channel handling capacity.
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    GlassWire Reviews

    GlassWire

    GlassWire

    $35.88/year/user
    1 Rating
    Monitor the volume of data your PC is using for every single app, thanks to GlassWire's network monitoring graph. Keep track of the volume of data you received and sent in the past and who or what your PC is talking to. Detect spyware, malware, badly behaving apps, and bandwidth hogs, then block their connections with our powerful firewall. Monitor devices on your network and get alerted when new unknown devices join your WiFi. GlassWire warns you of network-related changes to your PC or unusual changes to your apps that could indicate malware.
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