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.

  • 1
    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
    127 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 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 ADSelfService Plus Reviews

    ManageEngine ADSelfService Plus

    ManageEngine

    $595 for 500 domain users/year
    163 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 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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    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 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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    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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    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 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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    BackUp Maker Reviews
    Malware, accidental deletion, and hardware defects can put valuable files at risk. BackUp Maker helps you create dependable backups with minimal effort, giving you a reliable copy of your data whenever you need it. Select the files, folders, or drives you want to protect, define a schedule or trigger-based backup, and choose a suitable destination. BackUp Maker stores your data efficiently in ZIP archives on local and external drives, network locations, USB media, web servers, or in the cloud. Protect confidential content with powerful AES encryption of up to 256 bits. Encrypted backup archives can also be transferred securely to web servers using SFTP or FTP/FTPS. BackUp Maker supports a flexible backup strategy tailored to your needs. Back up only new and modified files, maintain several backup generations, distribute copies across different storage locations, and run custom actions before or after each backup. This makes it easy to automate comprehensive, space-saving, and secure data protection.
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    GPT-5.5-Cyber Reviews
    GPT-5.5-Cyber is a specialized cybersecurity model built for advanced defenders who need deeper capability and more flexible support for authorized security work. The updated model is designed to reduce unnecessary refusals while improving performance on vulnerability discovery, validation, patch development, and remediation workflows. It can analyze large codebases, identify security-relevant components, determine whether vulnerable code is reachable, validate likely issues in controlled environments, and help prepare evidence for human review. GPT-5.5-Cyber is intended to move defenders through the full remediation process, from finding a vulnerability to testing and supporting a fix. The model retains the general-purpose intelligence of GPT-5.5 while adding stronger cyber-specific performance for complex, long-running tasks. Benchmark results show higher scores than GPT-5.5 on CyberGym, ExploitGym, and SEC-bench Pro, including stronger single-model performance in reproducing known vulnerabilities and evaluating complex software targets. GPT-5.5-Cyber is positioned for verified defenders whose work requires advanced cyber capabilities and more permissive behavior than standard access models. Its deployment approach includes stronger verification, monitoring, scoped controls, and review to support responsible use. GPT-5.5-Cyber helps security teams identify actionable issues, reduce noise, validate findings, and land safer fixes across demanding software security workflows.
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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
    63 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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    Relianoid Reviews

    Relianoid

    Relianoid

    $1,356 one-time payment
    4 Ratings
    Our ADC solution is designed to take your online services to new levels of performance, security, and reliability. It ensures seamless traffic distribution and resource utilization as well as enhanced protection against cyber threats. Our ADC solution provides you with massive scalability and high availability for your services, apps, and networks. Multi-core compatibility, unlimited throughput, connections and farms, and optimized to support multi-core. Installation is not required, allowing for a rapid consolidation of production and a seamless deployment. Integrate easily into your infrastructure for a cost-saving and productive setup. Shared hardware resources can reduce costs associated with physical equipment, making this a budget-friendly solution. Ready for 64-bit platforms to provide better performance, and a robust environment. It allows for more performance resources than other architectures.
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    GlassWire Reviews

    GlassWire

    GlassWire

    $35.88/year/user
    2 Ratings
    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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    ManageEngine OpManager Reviews
    Top Pick
    OpManager is the ideal end-to-end network monitoring tool for your organization's network. With OpManager, you can keep a close eye on health, performance, and availability levels of all network devices. This includes monitoring switches, routers, LANs, WLCs, IP addresses and firewalls. Insights into your hardware health and performance; monitor CPU, memory, temperature, disk usage, and more to improve efficiency. Seamlessly manage faults and alerts with instant notifications and detailed logs. Streamlined workflows facilitate easy set-up to execute quick diagnosis and corrective measures. The solution also comes with powerful visualization tools such as business views, 3d data center views, topology maps, heat maps, and customizable dashboards. Get proactive in capacity planning and decision-making with over 250 predefined reports covering all important metrics and areas in your network. Overall, OpManager's detailed management capabilities make it the ideal solution for IT administrators to achieve network resiliency and efficiency.
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    ClouDNS Reviews

    ClouDNS

    ClouDNS

    $2.95 per month
    1 Rating
    ClouDNS provides a range of DNS hosting services, offering both free and premium options to meet various needs. Services include dynamic DNS, DDoS protection, GeoDNS, and advanced features like DNS Failover, DNSSEC, and Anycast DNS for faster and more reliable performance. The platform features a robust global network with a 10,000% uptime guarantee, ensuring consistent domain availability. Custom DNS solutions are available for hosting companies, along with SSL certificates and domain management tools.
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    ManageEngine Applications Manager Reviews
    Top Pick
    ManageEngine Applications Manager is an enterprise-ready tool built to monitor a company's complete application ecosystem. Our platform enables IT and DevOps teams to have access to all of their application stack's dependent components. Monitoring the performance of mission-critical online applications, web servers, databases, cloud services, middleware, ERP systems, communications components, and other systems is simplified with Applications Manager. It contains a range of capabilities that help to expedite the troubleshooting process and minimize MTTR. It's a great tool to resolve performance issues before they harm application end users. Applications Manager has a fully functional dashboard that can be customized to provide quick performance information. By setting alerts, the monitoring tool continually monitors the application stack for performance issues and notifies the appropriate staff without delay. Applications Manager helps transform performance data into meaningful insights by combining this with advanced machine learning.
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    EncryptPro Reviews

    EncryptPro

    PYTHONSOFTWARES (SMC-PRIVATE) LIMITED.

    $4
    Right-click a file to encrypt it for yourself, or for someone you're sharing it with — same menu, same two clicks. Shared files carry no password, no key management, and no email addresses — so the channel you share it over doesn't matter. Windows encryption with no containers, vaults, or drives to mount. Encrypt any file type. Double-click to open and edit it in its native application — changes save straight back to encrypted. Streaming decryption means a 10GB video plays within seconds while the rest decrypts in the background — no extract, no wait, no re-compress. Files stay where they are. Originals are overwritten with zeros, then random data, across multiple passes before deletion — unrecoverable even to forensic tools. Security groups organize encrypted files under separate passwords, so you unlock only what you're working on. Explorer icons show group and lock state at a glance, even when EncryptPro isn't running. Sharing runs on PGP-style key pairs generated once per connection. Keys never travel with the file — email it, put it on a public link, it makes no difference. C2 connections give teams one encrypt operation and universal member access, with no per-recipient steps. Only the creator needs a paid plan, so an entire team runs on one subscription. Keys derive from a master password we never receive, so your data is unreadable to us. There is no password recovery — any vendor offering account recovery necessarily holds something recoverable. We hold nothing readable. You can't be locked out of your data. Viewer Only Mode authenticates offline against your device. Expired subscription, no internet, our servers down, the company gone — your encrypted files still open. Windows only. Free version permanent, no credit card. Paid from $4/month.
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    ManageEngine Network Configuration Manager Reviews
    Top Pick
    Network Configuration Manager (NCM) is a multi-vendor solution for network configuration management (NCCM), which can be used to manage switches, routers, firewalls, and other devices. NCM automates and takes complete control of the entire device configuration management life cycle. You can schedule device configuration backups, track user activities, spot changes, and compare configuration versions all from one central web GUI. You can monitor configuration changes, receive instant notifications, and prevent unauthorized modifications to keep your network environment safe, stable, and compliant. Standard practices and policies should be established. Device configurations should be checked for violations. Then, you can quickly apply corrective measures to ensure compliance. Automate repetitive, time-consuming configuration management tasks. Also, centrally apply configuration changes to devices.