XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.