Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
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).
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Postman - The Collaboration Platform for API Development
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies