Shadowsocks - A fast tunnel proxy that helps you bypass firewalls
V2Ray - A platform for building proxies to bypass network restrictions.
GAppProxy - GAppProxy is an open source HTTP Proxy software runs on Google App Engine.
Puff - Puff is a secure proxy software & service, it is provided AS IS without any warranty
OpenVPN - OpenVPN - The Open Source VPN
WallProxy - WallProxy is an open source Proxy software runs on Google App Engine.