Best Secure Web Gateways for Linux of 2026

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.

UTunnel Secure Access delivers Cloud VPN, ZTNA, and Mesh Networking solutions to ensure secure remote access and smooth network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service enables quick deployment of Cloud or On-Premise VPN servers. Utilizing OpenVPN and IPSec protocols, it facilitates secure remote connections with policy-based access control, allowing you to easily establish a VPN network for your business. ONE-CLICK ACCESS: The Zero Trust Application Access (ZTAA) solution transforms secure access to internal business applications such as HTTP, HTTPS, SSH, and RDP. Users can access these applications through web browsers without needing client software. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution provides granular access controls to specific business network resources and supports the creation of secure interconnected business networks. SITE-TO-SITE VPN: The Access Gateway solution also allows for the setup of secure IPSec Site-to-Site tunnels. These tunnels can connect UTunnel's VPN servers with other network gateways, firewalls, routers, and unified threat management (UTM) systems.

Perimeter 81, a SaaS-based solution that provides customized networking and the highest level of cloud security, is revolutionizing how organizations use network security. Perimeter 81 simplifies secure network, cloud, and application access for modern and distributed workforce with an integrated solution that gives companies of all sizes the ability to be securely mobile and cloud-confident. Perimeter 81's cloud-based, user-centric Secure Network as a service is not like hardware-based firewalls and VPN technology. It uses the Zero Trust and Software Defined Perimeter security models. It offers greater network visibility, seamless integration with all major cloud providers, and seamless onboarding.

CacheGuard-OS is an open-source Linux-based UTM gateway appliance OS that has been in active development since 2002. It is designed to run on commodity x86 hardware and act as the default route between an internal network and the internet, replacing the ISP-provided router as the traffic checkpoint. The stack integrates: Squid (web cache and proxy), ClamAV (web antivirus), ModSecurity (WAF), StrongSwan (IPsec/IKEv2 VPN), IPRoute2 (QoS and WAN load balancing), NetFilter (stateful firewall), SSL inspection, and URL filtering. All components are configured through a web-based admin interface rather than directly, making the platform accessible to operators without deep Linux expertise while remaining auditable by those who want to inspect the underlying configuration. The OS has been open-source since its first release — source ships on every installed appliance. It was recently published publicly on GitHub to make the codebase easier to browse and audit. Target deployments are small to medium networks — SMBs, schools, and branch offices — where a commercial UTM appliance is overkill on budget but the threat surface is the same. Runs on bare metal or common hypervisors (VMware, VirtualBox, KVM, Hyper-V). No vendor lock-in, no subscription, no licence cost. GitHub: cacheguard/CacheGuard-OS

WebTitan is a DNS Based Web content filter and Web security layer that blocks cyber attacks, malware, ransomware and malicious phishing as well as providing granular web content control. WebTitan Cloud for Wi-Fi is a cloud-based content filtering solution for your Wi-Fi environment. Wi-Fi guests can be exposed to unsuitable websites and malware. WebTitan Cloud for Wi-Fi allows you to control the content that can be accessed, creates a safe environment to access the internet, and provides your organization with reports regarding network usage. Our intelligent AI driven real time content categorization engine combines industry leading anti-virus and cloud based architecture. This makes the WebTitan Cloud DNS filter an ideal solution for organizations needing maximum protection and minimal maintenance. WebTitan Cloud is a low maintenance solution that can be set up in five minutes to stop your users from accessing inappropriate content online. Start your free Trial of WebTitan today, with full support included.

SKUDONET provides IT leaders with a cost effective platform that focuses on simplicity and flexibility. It ensures high performance of IT services and security. Effortlessly enhance the security and continuity of your applications with an open-source ADC that enables you to reduce costs and achieve maximum flexibility in your IT infrastructure.

DNSFilter is a cloud-based DNS security platform designed to protect users from malicious websites, phishing attacks, and inappropriate content in real time. Using its AI-powered Webshrinker technology, it continuously analyzes and categorizes web domains to ensure up-to-date threat protection. The solution offers flexible deployment, including agentless configurations and dedicated clients for various operating systems, making it ideal for both on-premise and remote environments. With detailed reporting, customizable filtering policies, and compliance support for regulations like CIPA, DNSFilter caters to industries such as education, healthcare, and enterprise security. Its global Anycast network enhances speed and reliability, providing seamless protection without compromising browsing performance.

Fortinet stands out as a prominent global entity in the realm of cybersecurity, recognized for its all-encompassing and cohesive strategy aimed at protecting digital infrastructures, devices, and applications. Established in the year 2000, the company offers an extensive array of products and services, which encompass firewalls, endpoint security, intrusion prevention systems, and secure access solutions. Central to its offerings is the Fortinet Security Fabric, a holistic platform that effectively melds various security tools to provide enhanced visibility, automation, and real-time intelligence regarding threats across the entire network. With a reputation for reliability among businesses, governmental bodies, and service providers across the globe, Fortinet places a strong emphasis on innovation, scalability, and performance, thereby ensuring a resilient defense against the ever-evolving landscape of cyber threats. Moreover, Fortinet’s commitment to facilitating digital transformation and maintaining business continuity further underscores its role as a pivotal player in the cybersecurity industry.

Kitecyber delivers an advanced hyper-converged endpoint security solution that ensures comprehensive protection while fulfilling the compliance mandates for various standards, including SOC2, ISO27001, HIPAA, PCI-DSS, and GDPR. This innovative endpoint-centric model eliminates the necessity for cloud gateways or on-premise equipment, streamlining security management. The hyper-converged platform encompasses several critical protective features: 1) A Secure Web Gateway designed to protect internet usage 2) Measures to mitigate the risks posed by Shadow SaaS and Shadow AI 3) Anti-Phishing strategies aimed at safeguarding user credentials 4) A Zero Trust Private Access system, which acts as a next-generation VPN 5) Data Loss Prevention mechanisms applicable to all devices—Mac, Windows, and mobile 6) Comprehensive Device Management that covers Mac, Windows, and mobile devices for all personnel, including BYOD devices and third-party contractors 7) Ongoing Compliance Monitoring to ensure adherence to necessary regulations 8) User Behavior Analysis that helps identify and address potential security risks. Through these robust measures, Kitecyber not only fortifies endpoint security but also streamlines compliance and risk management processes for organizations.

The iboss Zero Trust Secure Access Service Edge (SASE) redefines network security architecture for modern businesses, enabling secure, direct-to-cloud connections that prioritize safety and speed. At its core, iboss Zero Trust SASE enforces strict access controls, ensuring that only authenticated and authorized users and devices can access network resources, regardless of their location. This is achieved through a comprehensive suite of security services that operate under the principle of "never trust, always verify," including advanced threat protection & malware defense, data loss prevention (DLP), CASB, RBI, ZTNA, and real-time inspection of encrypted traffic. Built in the cloud, iboss Zero Trust SASE provides unparalleled visibility across all user activities and sensitive data transactions, facilitating a secure digital transformation. This allows organizations to adopt a more flexible, perimeter-less security model that supports the dynamic work environments of today's workforce. With iboss Zero Trust SASE, businesses can confidently embrace cloud technologies and mobile working without compromising on security, ensuring a balance between productivity and protection in the ever-evolving cyber landscape.