What is tunnelx?

TunnelX is a free, open source Windows application for split tunneling VPN management. Split tunneling means you can choose which specific programs on your computer send their internet traffic through a VPN or proxy, while the rest of your traffic keeps using your normal internet connection, rather than routing everything through the VPN at once. The app supports several connection types: the traditional Windows L2TP/IPsec VPN protocol, V2Ray and Xray, which are privacy protocols popular in countries with internet restrictions, standard SOCKS5 and HTTP proxies, and OpenVPN using a configuration file the user supplies. For each connection profile, a user can choose which Windows applications get tunneled, and set rules based on specific domain names or IP addresses to include or exclude from the tunnel. Additional features include DNS leak protection, which keeps DNS lookups routed through the tunnel too, IPv6 blocking, a traffic history log, detection of the public exit IP address, and a local proxy at 127.0.0.1 for other tools that need a proxy address. The README also documents routing edge cases, such as how include and exclude rules apply to subdomains and how the app reacts if the OpenVPN tunnel's IP or gateway changes mid session. The app is written in C sharp and requires Administrator privileges to run, since intercepting and rerouting network packets needs deep operating system access. It is distributed as a standalone executable with no separate .NET runtime installation required, built through GitHub Actions with checksum files attached to each release. The README is available in Persian, Russian, and Chinese in addition to English, and the interface is described as Persian first. The full README is longer than what was shown.