Best Free Zero Trust Security Software of 2025

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.

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.

Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.

Embrace a Zero Trust model with OpenVPN Access Server. Our self-hosted platform empowers organizations of any size to implement essential zero trust principles. Move past the traditional approach of safeguarding just the internal perimeter of your company and minimize your vulnerability to attacks. With Access Server, you can secure employees working from home or on public WiFi, as well as protect access to SaaS applications beyond your network boundaries. We offer a comprehensive suite of tools and features designed to help you establish a robust zero trust network that effectively prevents or greatly reduces the risk of cyber threats.

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.

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.

Remote access to desktops and applications is fast, secure, and reliable. SparkView is a secure and simple way to connect devices that are not trusted to your desktops or applications. ZTNA, which does not require any client installation, provides secure remote access to any device that has a browser. All via HTML5 technology. The solution for mobile and remote work. Best web RDP client - advantages of SparkView: - ZTNA compliant remote access to applications, desktops and servers - Access from any device with browser (e.g. Chrome, Firefox, Edge, Opera, Safari, etc.) - No installation on clients or the target systems - One central point for administration, security and authorization - HTML5 technology - Flexible, stable and scalable - Low support and management overhead - Supports common protocols such as RDP, SSH, Telnet, VNC and HTTP(S) - No Java, no Flash, no ActiveX, no plugin, no rollout

Cloudflare is the foundation of your infrastructure, applications, teams, and software. Cloudflare protects and ensures the reliability and security of your external-facing resources like websites, APIs, applications, and other web services. It protects your internal resources, such as behind-the firewall applications, teams, devices, and devices. It is also your platform to develop globally scalable applications. Your website, APIs, applications, and other channels are key to doing business with customers and suppliers. It is essential that these resources are reliable, secure, and performant as the world shifts online. Cloudflare for Infrastructure provides a complete solution that enables this for everything connected to the Internet. Your internal teams can rely on behind-the-firewall apps and devices to support their work. Remote work is increasing rapidly and is putting a strain on many organizations' VPNs and other hardware solutions.

One platform, infinite ways for you to connect with your customers and employees. Any app can be made authable. Okta can help you create secure and delightful experiences quickly. Okta's Customer ID products can be combined to create the stack you need. This will provide security, scalability and reliability. Protect and empower your employees, contractors, partners. Okta's workforce identification solutions will protect your employees no matter where they are. You will have the tools you need to automate cloud journeys and support hybrid environments. Okta is trusted by companies around the globe to protect their workforce identities.

A comprehensive data security solution that includes ZTNA, 2FA and PAM. It also integrates SQL Firewall, DAM, DAM, PAM and SQL Firewall. This helps businesses prevent data theft and cyber attacks. It also helps them meet compliance and cyber insurance requirements.

ZeroTier transforms networking by creating a secure overlay that treats all your devices as though they’re on the same local network. With a setup that takes just minutes, our software-defined solution makes managing even the most complex networks effortless, no matter where your devices are located. Key benefits of ZeroTier include: Enabling private global networks tailored for IoT applications. Streamlining connections across multiple sites using software-defined networking. Replacing traditional VPNs to securely connect employees to essential systems. Choose ZeroTier for fast, flexible, and secure networking that meets the demands of today’s global businesses.

Portnox is a Network Access Control (NAC) software vendor. NAC sits within the larger field of cybersecurity, and more specifically network security. It is a technology that enables organizations to enact its own unique policy for how and when endpoints (desktops, laptops, smartphones, etc.) can connect to their corporate networks. NAC is designed to allow IT security teams to gain visibility of each device trying to access its network, and specifically the type of device and access layer being used (i.e. wifi, wired ports, or VPN).

InstaSafe is redefining the challenge of secure access to modern networks by leveraging Zero Trust principles with its security solutions, that ensure seamless access to cloud applications, SAP applications, on-premise data, IoT devices, and multiple other neoteric use cases. InstaSafe discards traditional VPN based conceptions of a network perimeter, instead moving the perimeter to the individual users and the devices they access. The Zero Trust approach followed by InstaSafe mandates a “never trust, always verify' approach to privileged access, without focusing on network locality.

CloudLAN is a secure virtual office that allows distributed teams to collaborate. CloudLAN allows users to connect all their computers through a single network. TeamVPN IP provides a roaming static IP that is not tied to an internet connection in a physical location. Additional features such as service casting and Host connect make remote work possible even for companies without an in-house technical team.

The way we work has changed. People can now work anywhere and not only from their office. Applications are now hosted in the cloud and not on-premise. The company network perimeter is now distributed across the internet. Traditional, network-centric VPNs for remote access are not only difficult to maintain and outdated, but also expose businesses to security risks. It is expensive and time-consuming to purchase, deploy, and maintain VPN infrastructure. Hackers can expose entire networks if they are unable to secure access at the application level. Twingate allows organizations to quickly implement a zero trust network that is more secure than VPNs. Twingate is a cloud-based service that allows IT teams to quickly set up a software-defined perimeter without having to change infrastructure. It also centrally manages user access to internal apps, no matter if they are in the cloud or on-prem.

Fudo provides users with swift and effortless access to Unix and Windows servers, applications, and devices. There’s no need for users to alter their routines, as they can continue utilizing familiar native clients such as Unix Terminals, RDCMan, or Putty. In addition, access can be gained through the Fudo Web Client, which operates solely with a web browser. The JIT feature enables the creation of access workflows that comply with a zero-trust framework. Within the request management section, users can conveniently specify and schedule the availability of particular resources for designated individuals, allowing for precise control. Fudo allows for comprehensive monitoring and recording of ongoing sessions across more than ten protocols, including SSH, RDP, VNC, and HTTPS, enabling live viewing or later analysis of recorded sessions. Notably, neither the server nor the end-user devices require any agents for operation. Additionally, Fudo enhances session management by allowing users to join ongoing sessions, share them, pause, or terminate them as needed, and also provides useful functionalities such as OCR and tagging for better organization and usability. This comprehensive suite of features positions Fudo as a powerful tool for secure access management.

XplicitTrust Network Access provides a Zero Trust Network Access solution (ZTNA), which allows users to work from anywhere and access applications securely. It integrates with existing identity provider for single sign-on and multi-factor authentication using factors like user identity, device security and location. The platform also includes real-time diagnostics of the network and centralized asset tracking for better oversight. Clients do not need to configure the solution and it is compatible with Windows, MacOS, and Linux. XplicitTrust provides robust security by using strong encryption, end to end protection, automatic key rotating and context-aware identification. It also supports secure connections and scalable application access for IoT applications, legacy applications, and remote desktops.

Transform the network you envision into reality with a solution that is both quick to implement and easy to manage. There's no need for heavy machinery to get started. Safeguard essential assets and devices that cannot be patched by utilizing a segmented virtual air gap. This allows for secure connections between any device or network across diverse environments, including public, private, cloud, and mobile networks. Prevent unauthorized lateral movement that could jeopardize your network's integrity. Eliminate the need for internal firewalls, complex VLANs, and ACLs, all while replacing costly MPLS links with more affordable SDWAN capabilities. Streamline remote access for employees and vendors, enhance hybrid cloud connectivity, and facilitate effective multi-cloud transport. Additionally, isolate and secure vital process controls and devices, share device data safely with cloud analytics, and offer secure vendor access to sensitive industrial networks. With these measures, you can ensure robust network segmentation that enhances security and provides protection against ransomware threats while also improving overall network performance.

Banyan provides a secure solution for application and infrastructure access specifically designed for enterprises. It offers a cloud-based zero trust access alternative to conventional network access tools such as VPNs, bastion hosts, and gateways. With just one click, users can gain access to infrastructure without exposing private networks. The setup process is straightforward, ensuring high-performance connectivity. Critical services can be accessed automatically while maintaining the security of private networks. Users can quickly connect to SSH/RDP, Kubernetes, and various database environments, including popular hosted applications like GitLab, Jenkins, and Jira; a command-line interface is also available. This platform facilitates collaboration across both on-premises and cloud settings without the need for complicated IP whitelisting. It streamlines deployment, onboarding, and management through tag-based resource discovery and publishing. The user-to-application segmentation is delivered from the cloud, focusing on availability, scalability, and management simplicity. Enhanced user experience is achieved through agentless, BYOD, and passwordless access, all facilitated by a one-click service catalog that makes accessing applications even more effortless. Overall, Banyan simplifies enterprise access management while ensuring robust security and efficiency.

Preventing data loss, malware attacks, and phishing threats can be achieved with a high-performance Zero Trust application access and internet browsing solution. Relying on conventional tools to connect staff to corporate applications often results in granting too much trust, which can lead to significant data vulnerabilities. The complexity of managing the corporate perimeter has increased due to conflicting configurations among your VPNs, firewalls, proxies, and identity providers. Nowadays, interpreting logs and understanding user access to sensitive information has become more challenging than ever. It is crucial that your employees, partners, and customers have access to a network that is not only secure but also fast and dependable for their tasks. By utilizing Cloudflare Zero Trust, traditional security boundaries are replaced with our expansive global edge, enhancing both speed and safety for teams worldwide. This approach ensures that uniform access controls are applied across cloud-based, on-premise, and SaaS applications, promoting a seamless and secure user experience. As the landscape of cybersecurity continues to evolve, adapting to these changes is essential for maintaining robust protection against emerging threats.

Implementing a default-deny, Zero Trust policy for users accessing applications across any on-premises private network, public cloud, or SaaS setting enhances security. This approach connects users more efficiently and securely than traditional VPNs while offering seamless integration with your existing identity providers and endpoint protection solutions. You can try our Free plan indefinitely for up to 50 users, allowing for specific application access control that prevents lateral movement. Users can easily access the resources they require while being restricted from those they should not reach. Cloudflare remains neutral regarding identity and application types, ensuring the safety of any application, whether SaaS, cloud-based, or on-premises, through your chosen identity provider. Furthermore, prior to access approval, it assesses device posture by checking signals such as Gateway client presence, serial numbers, and mTLS certificates, guaranteeing that only recognized and secure devices can connect to your vital resources. This comprehensive security framework not only streamlines connectivity but also fortifies your organization's defenses against unauthorized access.

FerrumGate is an Open Source Zero Trust Network Access project (ZTNA). It uses advanced identity management and access management technologies to provide secure access to your network. Multi-factor authentication, continuous monitoring and granular access controls. It can be used for secure remote access, cloud security, Privileged Access Management, Identity and Access Management, Endpoint security, and IOT connectivity.

The Teleport Infrastructure Identity Platform is a modernization of identity, access and policy for infrastructure for both human and not-human identities. It improves engineering velocity and resilience of critical infrastructure to human factors or compromise. Teleport is designed for infrastructure use cases. It implements trusted computing with unified cryptographic identity for humans, machines, and workloads. Endpoints, infrastructure assets and AI agents can all be identified. Our identity-everywhere solution vertically integrates identity governance, zero trust networking and access management into a single platform. This eliminates overhead and operational silos.

To uphold a robust security and compliance framework, it is essential to have a thorough understanding of your entire network landscape. Discover how to achieve immediate visibility and governance over your intricate hybrid network setup, along with its policies and associated risks. Security Manager offers centralized, real-time oversight, control, and administration of network security devices across hybrid cloud settings, all from a unified interface. This solution also features automated compliance assessments that assist in confirming adherence to configuration standards and notify you of any violations that arise. Whether you require ready-made audit reports or customizable options tailored to your specific needs, Security Manager streamlines the policy configuration process, ensuring you are well-prepared for any regulatory or internal compliance audits. In doing so, it significantly enhances your ability to respond promptly to compliance challenges.