GitHub Visualizer - Enter user/repo and see the project visually
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
CodeFlower - CodeFlower visualizes source code repositories using an interactive tree.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Codeology - Open-source algorithm that visualizes GitHub projects
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.