OpenVPN - OpenVPN - The Open Source VPN
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
Hotspot Shield - Hotspot Shield is a software application developed by AnchorFree, Inc.
Pagekite - Bring your localhost servers on-line.
TunnelBear - Really simple VPN to browse the web privately & anonymously.
Gotty - GoTTY is a simple command line tool that turns your CLI tools into web applications.