Best Free IT Security Software - Page 2

Compare the Top Free IT Security Software as of April 2026 - Page 2

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    Source Defense

    Source Defense

    Source Defense

    Source Defense is a mission critical element of web security designed to protect data at the point of input. The Source Defense Platform provides a simple and effective solution for data security and data privacy compliance – addressing threats and risks originating from the increased use of JavaScript, third-party vendors, and open-source code in your web properties. The Platform provides options for securing your own code, as well as addressing a ubiquitous gap in the management of third-party digital supply chain risk – controlling the actions of the third-party, fourth and nth party JavaScript that powers your site experience. The Source Defense Platform protects against all forms of client-side security incidents – keylogging, formjacking, digital skimming, Magecart, etc. – by extending web security beyond the server to the client-side (the browser).
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    KrakenD

    KrakenD

    KrakenD

    KrakenD is a high-performance API Gateway optimized for resource efficiency, capable of managing 70,000 requests per second on a single instance. The stateless architecture allows for straightforward, linear scalability, eliminating the need for complex coordination or database maintenance. It supports various protocols and API specifications, with features like fine-grained access controls, data transformation, and caching. Unique to KrakenD is its ability to aggregate multiple API responses into one, streamlining client-side operations. Security-wise, KrakenD aligns with OWASP standards and doesn't store data, making compliance simpler. It offers a declarative configuration and integrates with third-party logging and metrics tools. With transparent pricing and an open-source option, KrakenD is a comprehensive API Gateway solution for organizations prioritizing performance and scalability.
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    PowerDMARC

    PowerDMARC

    PowerDMARC

    PowerDMARC is a comprehensive email security solution designed to protect your brand reputation and safeguard your email communications. By leveraging advanced technologies such as DMARC, SPF, DKIM, BIMI, MTA-STS, and TLS-RPT, PowerDMARC offers a robust defense against email threats like spoofing, phishing, and ransomware. Our user-friendly platform simplifies complex configurations, empowering you to easily manage and monitor your email security posture. With AI-powered threat intelligence, you gain 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.
    Starting Price: $8 per month
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    Kasm Workspaces

    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.
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    Starting Price: $0 Free Community Edition
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  • 5
    ManageEngine ADManager Plus
    ADManager Plus is a simple, easy-to-use Windows Active Directory (AD) management and reporting solution that helps AD administrators and help desk technicians in their day-to-day activities. With a centralized and intuitive web-based GUI, the software handles a variety of complex tasks like bulk management of user accounts and other AD objects, delegates role-based access to help desk technicians, and generates an exhaustive list of AD reports, some of which are an essential requirement to satisfy compliance audits. This Active Directory tool also offers mobile AD apps that empower AD admins and technicians to perform important user management tasks, on the move, right from their mobile devices. Create multiple users and groups in Office 365, manage licenses, create Exchange mailboxes, migrate mailboxes, set storage limits, add proxy addresses, and more.
    Starting Price: $595 per year
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    ManageEngine ADAudit Plus
    ADAudit Plus helps keep your Windows Server ecosystem secure and compliant by providing full visibility into all activities. ADAudit Plus provides a clear picture of all changes made to your AD resources including AD objects and their attributes, group policy, and more. AD auditing helps detect and respond to insider threat, privilege misuse, and other indicators of compromise, and in short, strengthens your organization's security posture. Gain granular visibility into everything that resides in AD, including objects such as users, computers, groups, OUs, GPOs, schema, and sites, along with their attributes. Audit user management actions including creation, deletion, password resets, and permission changes, along with details on who did what, when, and from where. Keep track of when users are added or removed from security and distribution groups to ensure that users have the bare minimum privileges.
    Starting Price: $595.00/year
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    ManageEngine Log360
    Detect, investigate, and resolve security incidents and threats using a single, scalable SIEM solution. Log360 provides you with actionable insights and analytics-driven intelligence for real-time security monitoring, advanced threat detection, incident management, and behavioral analytics-based anomaly detection. Built as the bedrock for your SOC, ManageEngine Log360 comes with out-of-the-box correlation and workflow rules, dashboards, reports, and alert profiles to help you address vital security issues with little manual intervention.
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    ManageEngine ADSelfService Plus
    ADSelfService Plus is an on-premises access management solution that caters to businesses across various industries, such as IT, banking, engineering, education, aviation, and telecommunications. Key features include: 1. Self-service password resets and account unlocks: Users can reset their passwords in AD and unlock their domain accounts from a web browser. 2. MFA: Machine logins, VPN and OWA logins, and cloud app logins can be secured using MFA. 3. Password synchronizer and SSO: Users can log in to multiple apps using one unified identity via SSO and real-time password synchronization. 4. Password policy enforcer: Admins can configure custom password policies to enforce strong password creation. 5. Password expiration notifier: Admins can send end users password expiration notifications via SMS or email. 6. Directory self-update: Users can update their AD attribute information through the directory self-update feature.
    Starting Price: $595 for 500 domain users/year
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    ManageEngine EventLog Analyzer
    ManageEngine EventLog Analyzer is an on-premise log management solution designed for businesses of all sizes across various industries such as information technology, health, retail, finance, education and more. The solution provides users with both agent based and agentless log collection, log parsing capabilities, a powerful log search engine and log archiving options. With network device auditing functionality, it enables users to monitor their end-user devices, firewalls, routers, switches and more in real time. The solution displays analyzed data in the form of graphs and intuitive reports. EventLog Analyzer's incident detection mechanisms such as event log correlation, threat intelligence, MITRE ATT&CK framework implementation, advanced threat analytics, and more, helps spot security threats as soon as they occur. The real-time alert system alerts users about suspicious activities, so they can prioritize high-risk security threats.
    Starting Price: $595
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    QuantaStor

    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
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    TrafficGuard

    TrafficGuard

    TrafficGuard

    With TrafficGuard, you'll never have to worry about polluted traffic ruining your campaign efforts again. Our cutting-edge ML/AI-driven technology filters out dumb and sophisticated, fraudulent traffic in real-time, ensuring that your ad spend is directed towards real, high-quality clicks and conversions. This means improved campaign results and a higher return on your ad spend (ROAS). The powerful solution ensures that every penny of your advertising spend is safeguarded so you can focus on achieving your marketing goals with peace of mind. Let TrafficGuard take the worry out of ad fraud protection and help you guard your: - Google Search (PPC) campaigns - Mobile UA campaigns - Affiliate spend - Social Networks But we don't just stop at technology - our expert campaign management and world-class customer service ensure you have a partner you can rely on for all your ad fraud protection needs.
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    Starting Price: Free for up to $2.5k ad spend
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    Fraud.net

    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.
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    10Duke Enterprise
    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 Steinberg
    Starting Price: $199/month
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  • 14
    Curtain LogTrace File Activity Monitoring
    Curtain LogTrace File Activity Monitoring is an enterprise file activity monitoring solution. 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 Licensing: Curtain LogTrace is shareware. You can download and use the software for free on a trial basis or commercial use. If you want to log more file events (e.g. print, rename, save, open and close) and some advanced features, you need to activate the software to paid version.
    Starting Price: Free with limited functions
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    Curtain MonGuard Screen Watermark
    Curtain MonGuard Screen Watermark is an enterprise solution that displays watermarks on users' screens, showing information like PC name, and username. It captures user attention and serves as a reminder before taking screenshots to share sensitive information. 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 Licensing: Curtain MonGuard is shareware. You can download and use the software for free on a trial basis or commercial use. If you want to display [username] and [IP address] in screen watermark and some advanced features, you need to activate the software to paid version.
    Starting Price: Free with limited functions
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    Google Authenticator
    Google Authenticator generates 2-Step Verification codes on your phone. 2-Step Verification provides stronger security for your Google Account by requiring a second step of verification when you sign in. In addition to your password, you’ll also need a code generated by the Google Authenticator app on your phone. You can use your Google Account to more easily and securely sign in to thousands of sites and services on the web, while keeping your privacy choices transparent in one place. Protect your Google Account with Security Checkup. This detailed tool provides you with personalized and practical recommendations to help you strengthen the security of your Google Account. Hacked passwords are more common than you think. Two-step verification protects you from unauthorized access to your account. To do this, it requests a second step after entering the password.
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    Cisco Duo
    Cisco Duo is a cloud-based identity security solution that protects organizations from identity-based threats and boosts workforce productivity. Trusted by over 40,000 organizations worldwide, Duo delivers an exceptional access management experience across all users, devices, and applications, making access to resources secure, seamless, and easy. Duo with Cisco Identity Intelligence provides deep visibility across your identity ecosystem, adding a powerful security layer to any identity infrastructure. Offer users a world-class access experience through Duo Passport to eliminate MFA friction and fatigue without sacrificing security. To stop threats, Duo verifies user identities with strong authenticators including Duo passwordless, Verified Duo Push with number matching, and phishing-resistant factors like biometrics and FIDO2 security keys. Paired with deep insights into users’ devices, Duo gives you the control to adaptively limit access based on device health or user risk.
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    Starting Price: $3 per user per month
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    ActivTrak

    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
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    Gumlet

    Gumlet

    Gumlet

    Host, secure, and stream videos in minutes with Gumlet Video. Build custom video processing and delivery with Gumlet Video API. Optimize and deliver images at scale with Gumlet Image. Trusted by 10,000+ businesses, Gumlet handles 1.5B media files daily with a 54% optimization rate. Gumlet Video: Streamline Video Delivery 1. Simplify video streaming with minimal coding. 2. Achieve high compression without quality loss. 3. Manage videos on a unified platform. 4. Automate via APIs, SDKs, and webhooks. 5. Gain video analytics for better ROI. 6. RTMP Live Streaming at scale in minutes. Gumlet Image Optimization 1. Auto-resize and compress images. 2. Integrate seamlessly for better UX & SEO. 3. World’s first auto-responsive resize. 4. AI automation for complete image control. Founded in 2019 in Singapore by Aditya Patadia & Divyesh Patel, who also built AI startup Turing Analytics.
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    Starting Price: $10 / month
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    ProHoster

    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.
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    Starting Price: $2.50 per month
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    ManageEngine Applications Manager
    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.
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    Starting Price: $395.00/Year
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    NetFlow Analyzer

    NetFlow Analyzer

    ManageEngine

    NetFlow Analyzer is a comprehensive traffic analysis tool that leverages flow technologies to provide real-time visibility into network bandwidth performance. NetFlow Analyzer is primarily a bandwidth monitoring tool, which has optimized thousands of networks globally, offering a holistic view of your network bandwidth and traffic patterns. NetFlow Analyzer is a unified solution that collects, analyzes, and reports on your network's bandwidth usage, and by whom. NetFlow Analyzer is your partner in optimizing bandwidth usage across a million interfaces globally, as well as providing network forensics and network traffic analysis. Reconfigure policies with traffic shaping via ACLs or class-based policies to gain control of the applications that use the most bandwidth. NetFlow Analyzer leverages Cisco NBAR technology to give you deep visibility into Layer 7 traffic and recognize applications that use dynamic port numbers or hide behind known ports.
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    Starting Price: $245
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    ManageEngine Network Configuration Manager
    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.
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    Starting Price: $238
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    Pandora FMS

    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.
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    Starting Price: €90/month
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    RECOGNITO

    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.
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    Starting Price: Free
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    MIRACL

    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.
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    Oz Liveness

    Oz Liveness

    Oz Forensics

    Oz Liveness is a leading facial recognition and authentication software used by private and public organizations across the globe to lower the risk of biometric fraud by preventing deepfake and spoofing attacks with 100% accuracy. The technology has been validated by the industry’s most rigorous testing standard, ISO 30107-3 iBeta level 1 and 2 certifications. It helps organizations validate they are dealing with a real person within seconds, lowering compliance and fraud risks. Oz Liveness features advanced algorithms able to detect many forms of biometric spoofing, including 3D and 2D masks and photos along with photos or videos displayed on a mobile or a laptop screen. On-device Liveness detection and face biometry checks allow to use of a phone as a personal biometric device. No data is sent to the server from the device and stays in the customer's hands. On-device Liveness is perfect in any customer’s use case, improving the reachability and stability of the services .
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    Starting Price: $2,625/year/12,500 transaction
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    SharePass

    SharePass

    SharePass

    SharePass is a SaaS Secret Management platform that allows sharing and managing secrets and confidential information using a web application, extension, or mobile app. SharePass works with encrypted links transmitted from the sender to the receiver with various settings and flags. The settings include expiry restriction, availability, IP restrictions and an entire filtering funnel (patent pending). SharePass is platform-independent that can be used with your existing communication tools. When it comes to your privacy, SharePass or any of its employees cannot see the content of your secrets; the secrets can be seen only by the exchanging parties. SharePass meets the latest cybersecurity compliance and regulations. In the era of identity theft, SharePass will protect you and prevent your data from leaking to the dark web by eliminating your digital footprint. SharePass supports SSO with Office365, Google Workspace, MFA, and integration with Yubikeys for maximum security.
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    Starting Price: Free
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    Action1

    Action1

    Action1

    Action1 is an autonomous endpoint management platform trusted by many Fortune 500 companies. Cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes—it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party patching with peer-to-peer patch distribution and real-time vulnerability assessment without needing a VPN, it eliminates routine labor, preempts ransomware and security risks, and protects the digital employee experience. In 2025, Action1 was recognized by Inc. 5000 as the fastest-growing private software company in America. The company is founder-led by Alex Vovk and Mike Walters, American entrepreneurs who previously founded Netwrix, a multi-billion-dollar cybersecurity company.
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    Starting Price: $0 USD/per device/per month
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    Relianoid

    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
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