WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
MAMP - MAMP is the abbreviation for Macintosh, Apache, MySQL, and PHP. It is a reliable application with its four components that allows you to access the local PHP server as well as the database server (SQL).
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
TreeSize - TreeSize tells you where precious disk space has gone to.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies