gluetun is a lightweight VPN client implemented in Go, designed to be run in a minimal Docker container. It supports a large number of VPN providers, utilizing either OpenVPN or Wireguard protocols to establish secure connections. The project incorporates DNS over TLS for enhanced privacy and includes built-in proxy server functionality for tunneling HTTP and SOCKS5 traffic.
gluetun's standout feature is its exceptionally small image size (around 41MB) based on Alpine 3.22, making it ideal for resource-constrained environments. The built-in support for both UDP and TCP protocols, as well as embedded DNS over TLS and SOCKS5/HTTP proxy capabilities, adds significant versatility. It also offers flexible container networking and device sharing, making it adaptable to various deployment scenarios.
- Provider Support: Supports a wide array of VPN providers including NordVPN, Surfshark, Mullvad, and many others.
- Protocol Flexibility: Supports both OpenVPN and Wireguard, with varying feature sets for each (e.g., Wireguard's userspace and kernelspace options).
- DNS over TLS: Integrates DNS over TLS for enhanced privacy and prevents DNS leaks.
- Proxy Server: Functions as a built-in SOCKS5 and HTTP proxy, enabling tunneling for other applications.
- Container Integration: Seamlessly integrates with Docker, facilitating easy deployment and management within containerized environments.
gluetun is an actively maintained project with regular updates and a responsive community evident from recent commits and issue resolution. Comprehensive documentation and a detailed wiki provide clear setup instructions and configuration options. The project has a significant number of stars and forks on GitHub, indicating user adoption and community interest.
gluetun benefits developers and users seeking a lightweight, versatile, and easy-to-configure VPN solution. It's particularly useful for deploying VPN clients in containerized environments and integrating VPN functionality into other applications. It offers a simpler alternative to complex VPN client setups, providing secure and private internet access with minimal overhead.