Wikis in other languages: Russian German Italian French Polish 简体中文文档 Spanish Korean Tiếng Việt Brazilian Portuguese Welcome to the Nginx English Wiki Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. Written by Igor Sysoev in 2005, Nginx now hosts between 1% and 4% of all domains worldwide (sources: 1, 2).