- [Outline](https://getoutline.org/) - A toolset to run shadowsocks service and a service management API easily, including client apps. ([Source Code](https://github.com/Jigsaw-Code/?q=outline)) `Apache-2.0``TypeScript`
- [OpenVPN](https://community.openvpn.net) - Uses a custom security protocol that utilizes SSL/TLS for key exchange. ([Source Code](https://github.com/OpenVPN/openvpn)) `GPL-2.0``C`