WPMU DEV - WPMU offers WordPress Plugins, WordPress Themes, WordPress Multisite and BuddyPress Plugins and Themes.
OllyDbg - OllyDbg is a 32-bit assembler level analysing debugger.
Firefox Developer Edition - Built for those who build the Web. The only browser made for developers.
X64dbg - X64dbg is a debugging software that can debug x64 and x32 applications.
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).
SoftICE - SoftICE is a debugging software for windows and DOS that analyzes all your programs and repairs them.