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Shimo supports every major VPN protocol that is currently available: The widely used CiscoVPN, the very secure OpenVPN and all standard-compliant IPSec connections. It also handles Point-to-Point Tunneling (PPTP) and Layer 2 Tunneling (L2TP) protocols. Even Cisco’s new Secure Socket Layer (SSL) protocol AnyConnect is supported by Shimo – the most flexible VPN client for Mac. Shimo also enables you to establish encrypted Secure Shell (SSH) connections including port forwarding for secure web browsing. »

Viscosity is a VPN client for Mac OS X and Windows. It allows a user to connect to a VPN server and establish a VPN connection. Viscosity provides a clear and intuitive user interface for creating, editing, and controlling VPN connections, and makes it easy for users new to VPN to get started.

SSH Proxy can help you turn any remote SSH server into a SOCKS v5 proxy, intuitive and easy to use.

OAST is a cross-platform front-end (GUI) for OpenVPN-client, allowing to manage multiple. Its quite simple in use and provides base functionality such as monitoring connection status. Application is written in Java so it works on both Windows and Linux

SSH Tunnel allows you to easily manage and precisely control your SSH tunnels.

gSTM is a front-end for managing SSH-tunneled port redirects. It stores tunnel configurations in a simple XML format. The tunnels (local, remote and dynamic) can be managed and individually started/stopped through one simple interface.

OpenVPN Manager is a tool which controls OpenVPN. It is written in C# and uses the management interface of OpenVPN to control connections. Use the smart card feature in a simple way, enter passwords, monitor the OpenVPN log etc... The goal is to be a simple but powerful OpenVPN GUI.

MyEnTunnel is a simple system tray application (or NT service) that establishes and maintains TCP SSH tunnels. It does this by launching Plink (PuTTY Link) in the background and then monitors the process. If the Plink process dies (e.g. connection drops, server restarts or otherwise becomes unreachable) MyEnTunnel will automatically restart Plink to reestablish the tunnels in the background. It tries to use as little CPU and system resources as possible when monitoring (When the "Slow Polling" option is enabled it only does one context switch per second). »

tunXten is a lightweight but powerful OpenVPN GUI client for the Windows platform. It takes OpenVPN usability to the next level by providing intuitive, easy to use way to handle an unlimited number of OpenVPN configurations.

OpenVPN MI GUI is a Windows graphical user interface for the OpenVPN client management interface.