Best Free Zero Trust Network Access (ZTNA) Solutions of 2026

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.

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.

OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) solution you deploy into your own environment — on-prem or your AWS, Azure, or GCP account — so tunnel traffic and configuration never touch a third-party network. Access is enforced by application, not IP or subnet: each user reaches only the app they're entitled to, identified by domain name, with no visibility into anything else. That structurally blocks lateral movement — there's no connectivity path for a breach to exploit. With Access Server Link, deployment is a guided setup (hostname, cloud, region, password) with SSL certificates auto-provisioned and renewed, removing manual cert management as an attack surface. Entitlements tie to hostname, so they survive IP changes and autoscaling without rework. Your instance stays fully under your control, preserving the data ownership and audit posture required for HIPAA, SOC 2, and GDPR — full sovereignty over the control plane, with SaaS-level simplicity. The admin portal replaces SSH-based management: users, certificates, and access policies are configured through a browser, so shell access isn't required, shrinking your attack surface. The Zero Trust App Broker mediates every connection through a placeholder IP scoped to one authorized application — users never learn the real destination, so a compromised credential can't be used to probe or discover other systems. This enforces least privilege by design, not just by policy that can drift or be misconfigured. Client apps span Windows, macOS, iOS, Android, and Linux, so identity- and application-based controls apply consistently across devices. Deployment runs through preconfigured templates on AWS, Azure, and GCP, giving security teams repeatable, auditable rollouts.

CloudConnexa is OpenVPN's cloud-delivered Zero Trust Network Access (ZTNA) platform that also delivers core Security Service Edge (SSE) capabilities, letting organizations replace legacy VPN infrastructure with a fully managed, cloud-native service. Signing up provisions a private overlay network, conceptually a virtual distributed router and next-generation firewall, spanning 30+ global regions connected in a full-mesh topology for low-latency, redundant routing between points of presence. Private infrastructure joins this network through Connectors: Network Connectors attach entire private networks (offices, data centers, VPCs/VNets in AWS or Azure), while Host Connectors attach individual servers or IoT devices. Hosts run an OpenVPN client to expose specific services. Remote users, sites, and cloud resources connect over encrypted OpenVPN tunnels, with Data Channel Offload (DCO) support for higher throughput on Linux. Access is governed by identity-based, role- and group-based policies, with SAML, LDAP, and SCIM integration so admins scope users to only the resources they need. Application domain-based routing cloaks real IP addresses, enabling microsegmentation without exposing server infrastructure. Built-in Cyber Shield security bundles DNS content filtering across 43+ categories, intrusion detection/prevention (IDS/IPS), Device Identity Verification & Enforcement (DIVE) for posture checks, and two-factor authentication. Admins get audit logging, SIEM integration, and alerting for visibility and troubleshooting. It's all managed from a single cloud dashboard, giving organizations scalable, zero-trust connectivity without operating their own VPN servers.

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.

Pomerium serves as a secure, clientless solution that allows users to access web applications and services effortlessly, bypassing the necessity of a corporate VPN. By focusing on enhancing developer productivity, it removes convoluted user access processes that can obstruct workflow efficiency. Unlike traditional client-based tunneling solutions, Pomerium ensures rapid connections with minimal latency while maintaining robust security and privacy standards. Utilizing contextual information for access control, it adopts the principle of continuous verification, embodying a zero trust framework where each action is assessed based on contextual elements before approval or rejection. This method stands in stark contrast to NextGen VPNs, which typically only confirm authentication and authorization at the beginning of a session. Furthermore, Pomerium facilitates secure access to various platforms, including web applications, databases, Kubernetes clusters, internal tools, and legacy systems, making it an ideal choice for both individuals and teams of any size. With its innovative approach, Pomerium is revolutionizing the way organizations manage access to their digital resources.

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.

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.