Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
OctoPerf - OctoPerf is a SaaS load testing solution, based on JMeter.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
StresStimulus - Load testing tool for websites and mobile that works with hard-to-test applications.
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.
SmartMeter.io - Performance Testing with Enterprise-Level Features with a familiar jMeter interface