SimpleServer:WWW is described as 'Ever wanted to set up a webserver so that you could have your friends check out a new page you're working on? Or maybe you'd just like to play around with HTML, and need to have a local webserver to get a good feel' and is an app in the Development category. There are more than 25 alternatives to SimpleServer:WWW for a variety of platforms, including Windows, Linux, Mac, Self-Hosted solutions and BSD. The best alternative is Apache HTTP Server, which is both free and Open Source. Other great apps like SimpleServer:WWW are nginx (Free, Open Source), lighttpd (Free, Open Source), UwAmp (Free) and Microsoft IIS (Paid).
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).
UwAmp is a Wamp Server with Apache MySQL PHP and SQLite, and it comes with an very smart interface that offers various information, configuration and commands for the server. It can handle multiple php versions and monitor cpu usage. Also it is able to run in U3 mode.
Internet Information Services (IIS) for Windows® Server is a flexible, secure and easy-to-manage Web server for hosting anything on the Web. From media streaming to web application hosting, IIS’s scalable and open architecture is ready to handle the most demanding tasks.
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