Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
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).
Jackmail - A newsletter plugin for Wordpress.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Wordfence - Comprehensive security plugin for WordPress.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies