JMeter
The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.
Similar Tools
Loader.io is a free load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections.
Performance testing with Flood increases customer satisfaction and confidence in your production apps and reduces business risk.
SeleniumBase Case Plans is Test Case Management Software that uses Markdown tables for displaying test plans directly in GitHub (and other source code management systems that support Markdown format).
WebLOAD – Performance and Load Testing for the Most Challenging Web Applications
