Loader.io - Loader.io is a simple cloud-based load testing service
XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
LoadFocus - Cloud Testing Infrastructure | Cloud Testing Services and Tools for Websites & APIs.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Loadium - Performance Testing & Load Testing Tool
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996