A load and stress testing tool that provides a way of testing web sites and intranet applications via web interface. [Commercial, trial version]

A Java load-testing framework. It has support for testing HTTP based services and can also be used to test MOM and POP3, SMTP, FTP, and LDAP applications. [Open Source, BSD-style license]

A monitor which provides a visual landscape display of J2EE and .NET component-based performance metrics, component interactions, and analysis of performance short-comings. Online interactive demo. [Commercial]

WAPT is a load and stress testing tool for web sites and intranet applications with web interface. Accurate load simulation, run-time test data generation, recording and play back of secure HTTPS requests, clear graphs and reports. [Commercial, trial ...

Load, stress, and performance testing software and tools for Web servers. Interactive reports tell how many real users a Web site can handle at one time and which Web pages are slow. [Commercial]

This tool checks the consistency of a web site and makes a load time analysis for all page elements. It provides a set of reports and statistic layouts representing web page download information. Available for various Windows platforms. [Commercial, t...

A tool for automated testing of web applications and services. It can test individual components with HTTP interfaces, and is a test harness to create a suite of automated functional and regression tests. [Open source, GPL]

A HTTP-client/server load, stress and performance testing application designed to pinpoint critical issues in Web server that may prevent optimal performance. By Paessler GmbH. [Commercial, trial version]