See also:

• Computers: Performance and Capacity  (48)
• Computers: Programming: Software Testing: Products and Tools  (87)
• Computers: Software: Internet: Site Management: Benchmarking  (10)

• Apache JMeter - Graphical server performance testing tool, for both static and dynamic resources (files or CGI, Servlets, Perl scripts). It may be used to simulate a heavy load on a server or network to test its strength or to analyse overall performance under different load types. [Open Source, BSD-like]
• CAPAF, the Composite Application Performance Assurance Forum - A knowledge platform, a discussion space and information source on performance assurance of Service Oriented Architecture and composite applications.
• Facilita Forecast Applications - A suite of low footprint load testing tools for web, .NET and Java applications as well as for networks, databases and custom C, C++, .NET and Java APIs. [Commercial]
• The Grinder - 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]
• JBlitz - Web stress, load and performance testing tools for testing websites, web services and web enabled applications. By Clan Productions. [Commercial]
• Load Testing Tools Resources - Tools that can help a website or intranet application developer to ensure that it sustains the desired load.
• LoadeaTest - A stress test tool which offers to test performance from capturing to analyzing results. The application is available for Windows platforms equipped with the .NET runtime environment. [Commercial, free restricted version]
• Neotys - Offers NeoLoad, a testing tool for web applications which provides monitors and results reports to pinpoint bottlenecks and performance issues, as well as application deployment services. [Commercial, trial version]
• OpenDemand Systems, Inc. - Web performance management software and services including stress testing, performance monitoring, and professional services.
• OpenSTA - Project to build a distributed Web load testing architecture based around CORBA. [Open Source]
• PerformanceXperts, Ltd. - An independent performance, load and stress testing specialist company with experience of designing and implementing performance testing strategies across many business sectors and technologies.
• Performax, Inc. - Provides software load testing, performance analysis, tuning, optimization, and characterization services. The applied methodology is presented as well as several customers.
• PerfTestPlus, Inc. - Offers software-testing-related services and, on its site, articles and presentations about performance testing written by Scott Barber.
• Proxy Sniffer - Web load testing and site analysis tool implemented in Java, permitting to test and analyze the performance characteristics and the stability of Web applications under various load conditions. [Commercial, free limited version]
• PureLoad - A Java-based performance testing and analyzing tool that helps application developers by automating the process of stress testing server applications. [Commercial, trial version]
• Quotium Technologies - Range of professional web load and database testing and monitoring solutions.
• RadView Software Inc. - Developer of web application testing and analysis software to verify the performance, scalability, and integrity of e-business applications. [Commercial]
• Red-Gate Software: .NET testing tools - The Advanced .NET Testing System (ANTS) is for load and scalability testing of .NET web services and other web applications. [Commercial, trial version]
• StressTester - A performance testing tool for any web, asynchronous or SQL application with information on current clients and a partner program. The tool allows testing with no scripting. [Commercial]
• Test Today, Ltd. - Performance testing of computer-based business systems using automated testing and monitoring technologies.
• Testing Master - A load and stress testing tool that provides a way of testing web sites and intranet applications via web interface. [Commercial, trial version]
• Tevron - Offers automated testing solutions for Windows platforms and focuses on load testing, application monitoring and functional testing for various enterprise applications. [Commercial]
• Vantage Analyzer - 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]
• Web Application Load and Stress Testing - 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 version]
• Web Performance, Inc. - 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]
• Web Site Optimal Performance (WSOP) - 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, trial version]
• WebInject - 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]
• Webload - A community site for professional performance testing of internet applications, hosting the free WebLOAD Open Source project. The project seeks to enhance WebLOAD and share performance testing knowledge.
• Webserver Stress Tool - 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]