Feel free to add to this list.

• shadowsocks - Python version
• shadowsocks-nodejs - Node.js version
• shadowsocks-go - Go version
• shadowsocks-libev - C libev version
• shadowsocks-libuv - C libuv version
• shadowsocks-erlang - Erlang version
• shadowsocks-dotcloud - Dotcloud PAAS version. Not compatible with other version

• shadowsocks-gui - Cross-platform GUI powered by node-webkit
• GoAgentX - OSX client, with GUI

• shadowsocks-gui - Cross-platform GUI powered by node-webkit
• shadowsocks-csharp - Windows version with GUI
• Yingwa - Shadowsocks Windows client

• shadowsocks-gui - Cross-platform GUI powered by node-webkit
• Or use command line versions in Server side

• shadowsocks-iOS - All devices, web browser, global proxy with some restrictions
• MobileShadowSocks - Jailbroken devices only, global proxy with no restriction

• shadowsocks-android

• shadowsocks-openwrt - works on OpenWRT routers

• shadowsocks-ruby Ruby version
• shadowsocks-chromeapp - Chrome App

• cow - Powerful HTTP proxy, detecting blocked sites automatically
• pobi
• lightsocks - Transparent TCP proxy

• balan-proxy