mongrel2 is described as 'Mongrel2 is an application, language, and network architecture agnostic web server that focuses on web applications using modern browser technologies' and is an app in the Development category. There are more than 10 alternatives to mongrel2 for a variety of platforms, including Linux, Mac, Windows, Self-Hosted solutions and BSD. The best alternative is Apache HTTP Server, which is both free and Open Source. Other great apps like mongrel2 are nginx (Free, Open Source), lighttpd (Free, Open Source), LiteSpeed Web Server (LSWS) (Freemium) and mongrel (Free, Open Source).
nginx [engine x] is a HTTP and reverse proxy server, as well as a mail proxy server written by Igor Sysoev. It has been running for more than five years on many heavily loaded Russian sites including Rambler (RamblerMedia.com).
LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement. LSWS is the 4th most popular web server on the internet and the #1 commercial web server. Upgrading your web server to LiteSpeed Web Server will improve your performance and lower operating costs
Tornado is an open source version of the scalable, non-blocking web server. The framework is distinct from most mainstream web server frameworks (and certainly most Python frameworks) because it is non-blocking and reasonably fast.
Need to share some files with your colleagues or setup basic html website on your machine? It's very simple with Simple HTTP Server. Just click 'Start server' and choose a folder to share. The url already in your clipboard.