Open Source JavaScript VPN Software

Securing your network should not require an enterprise budget. CacheGuard is a free open-source network security appliance for startups and growing businesses that need serious protection without the complexity. Install CacheGuard-OS on any x86 machine or VM and get a complete security gateway in under an hour. No plug-ins, no compatibility issues. Everything works out of the box. CacheGuard-OS is not an app, it IS the OS. A fully custom network appliance operating system built from scratch over 20 years, now fully open source. One ISO includes: firewall, VPN, web antivirus, URL filtering, SSL inspection, WAF, reverse proxy, load balancer and QoS. Free for any number of users. Optional paid support available. Source code: https://github.com/cacheguard/CacheGuard-OS Website: https://www.cacheguard.com/

Zephyr is a lightweight, cross-platform graphical client for the Mihomo (Clash Meta) proxy engine, built with Tauri and Rust. It provides centralized management of proxy configurations, subscriptions, and network connections through a modern desktop interface. Users can switch between rule-based, global, and direct connection modes or enable system-wide routing through TUN. Its Prism Engine supports declarative rule modifications, intelligent proxy node selection, and automatic failover. The application monitors active connections, traffic speeds, and historical network activity in real time. Security mechanisms include encrypted subscription metadata, DNS leak protection, sandboxed scripts, and update integrity verification. Zephyr runs on Windows, macOS, and Linux with customizable themes and multilingual support.

OpenVPN ALS is a web-based SSL VPN server written in Java. It has a browser-based AJAX UI which allows easy access to intranet services. OpenVPN ALS is a direct descendant of Adito, which was a fork of SSL-Explorer.

Open-source MARZ VPN client apps for Android, Windows and Linux: one-tap connect, servers in the US, Sweden and Russia (VLESS with REALITY), sign-in with Telegram or email, plan and traffic shown in the app. English, Russian, Persian and Simplified Chinese. Windows and Linux apps include a Kill Switch (on by default, can be turned off in Settings) and DNS protection. The Android app has no Kill Switch of its own; use Android's "Always-on VPN" and "Block connections without VPN". The apps are free and GPL-3.0-or-later licensed. Connecting requires a MARZ VPN account with a trial or paid plan. The free trial starts only when you activate it in the Telegram bot and lasts up to 72 hours or 3 GiB, whichever comes first. Paid plans from $2 per 30 days. Website: https://marzvpn.com Source: https://github.com/amberfield2931/MARZ-VPN-Apps Telegram: https://t.me/MarzReality_bot Support: support@marzvpn.com No warranty. A VPN cannot guarantee complete privacy or anonymity.

Hypersocket is a streamlined VPN solution built for all types of remote access scenarios. Powerful yet simple to use, Hypersocket uses a single installed client to provide access to any number of network resources. Its powerful granular access means you can have fine grained control over your entire network and remote users. Accessed through a secure HTTPS port, the Hypersocket client provides access to any number of host/port combinations all effortlessly assigned server-side by the Administrator through roles. The Administrator is able to configure the server through a web portal on the same HTTPS port. * Use as a typical VPN solution to replace IPSec type access for a more granular security policy * Use behind a fire-walled WLAN as a BYOD gateway * Use fine grained access to manage who has access to what resource * Keep your network and business safe by denying complete remote access to any user account * Support for Mac and Windows clients

Rockhopper is IPsec/IKEv2-based VPN software for Linux. This software is interoperable with Windows 7, Windows 8 and Windows 10 VPN clients and it provides a handy AJAX-based Web console to manage Secure Virtual Ethernet(LAN), Routing-based VPN, Remote Access VPN and servers protected by IPsec. No kernel modules are needed. The ESP protocol stack is also implemented in user space.

Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy. Under the hood, it separates website storage into tab-specific Containers. Cookies downloaded by one Container are not available to other Containers. You can even integrate individual Containers with Mozilla VPN to protect your browsing and location. With the Firefox Multi-Account Containers extension, you can sign in to two different accounts on the same site (for example, you could sign in to work email and home email in two different Container tabs. Keep different kinds of browsing far away from each other (for example, you might use one Container tab for managing your Checking Account and a different Container tab for searching for new songs by your favorite band)