Outline Server

The software runs a Shadowsocks proxy for each access key and exposes a REST API that lets administrators create, list, and delete those keys. It bundles the core proxy implementation with an optional metrics service, and can be deployed directly from source using Node, npm, and Go. A companion graphical tool, Outline Manager, provides a user‑friendly way to generate and share keys, while the underlying server enforces AEAD ciphers, probing resistance, replay protection, and variable packet sizes to hinder detection.

It is intended for individuals or organizations that want to host their own VPN‑like service without relying on third‑party providers. By self‑hosting, users retain control over server location and who can connect, making it suitable for personal use, small teams, or larger groups that need to distribute many unique keys.

The project is open‑source under the Apache‑2.0 license, requires no subscription, and is described as stable. It includes a build system, documentation for configuration, and community channels for support.