nginx - A high performance free open source web server powering busiest sites on the Internet.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
SimpleHTTPServer - Serve a single directory over HTTP
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Wt - Wt (pronounced as witty) is a C++ library for developing web applications.