SoapUI by Smartbear is an open source functional testing tool. K6 is a modern open-source load testing tool providing an outstanding developer experience to test the performance of APIs and websites.
Apache JMeter is an open-source load testing tool.
Free open source performance testing tools for web applications. Apache JMeter is another free and open source tool that is used for load testing performance testing and to gauge the functional behaviour of Web applications. It is available in both open source and proprietary versions. You can generate load from on-premises machines or from the cloud.
Compare the best free open source Performance Testing Software at SourceForge. Multi-Mechanize is an open-source framework for performance and load testing that runs concurrent Python scripts to generate load synthetic transactions against a remote site or service. Sahi is an automation and testing tool for Web applications.
It uses the profiler API that is currently only available toNET Frameworks running on the Windows platform. It is a Java desktop application designed to load functional test behavior and measure the performance of websites. It allows QAs measuring software performance both on static and dynamic resources.
JMeter can be used to test the performance of both static and dynamic web pages and resources including Web services PHP ASPNET Java database and queries. This tools mainly used for web and web service applications. It detects the bottlenecks in early development phase which help in reducing the overall debugging effort.
Gatling is an open source load and performance testing tool intended for web applications. Apache JMeter is an open source cross-platform Java application that can run on Linux Mac and PCs. JMeter is an open source tool that can be used for performance and load testing for analyzing and measuring the performance of a variety of services.
The open source version includes record and playback on all browsers HTML reports suites and batch run and parallel playback. It offers continuous integration. Twister Open Source Test Automation Framework Tool is an open source tool.
You can use Gatling with Jenkins which helps in better regression performance testing and faster delivery. You can find a number of them on the internet. Written in JAVA Vega comes with a GUI interface.
WebLOAD is a load and web performance testing tool for web applications that enables stress and load testing using Adobe Flex Ajax HTML5 Oracle Forms MicrosoftNET and other technologies. The tool was developed for the purpose of load testing web applications but it is now expanded to other test functions. An open source testing too is simply a tool for testing websites for performance cross browser support and responsiveness that is open source and free.
It was developed for the audit of Web applications but nowadays it is also used for core network functions and the deep evaluation of protocols. Apart from API testing it provides other features like simulation and mocking invoking web service inspection etc. Sikuli is great for testing desktop applications and when you cannot easily access GUIs source code.
Framework7 is an astonishing HTML framework used for building Android and iOS apps created by Vladimir Kharlampidi. Its commonly used for web performance and scalability testing but you can also use it to generate a workload against any remote API accessible from Python. The k6 motto is Like Unit testing for Performance.
Apache Jmeter is open source performance and functionality testing tool designed to test Java applications. It is available for Windows Linux and Mac OS. It provides an end to end API test automation framework for SOAP and REST.
Also most of these tools protocols can be used for both performance testing web application and performance testing web services. Apache JMeter is a 100 pure Java Open Source application that can be used to test performance on both static and dynamic resources simulating heavy loads on individual servers groups of servers networks or objects to test strength and analyze performance under different load types. Also you can perform functional testing load testing and compliance testing.
Vega is a free open source web application testing tool. JMeter is a load free testing tool designed initially for web applications. Best testing tool to test performance and functionality of web applications with complete detailed report generating.
Check out the getting started documentation here. It is a free and open source framework to develop mobile desktop and web apps with native look and feel. Twister Open Source Test Automation Framework Tool.
For enterprise-wide performance testing tools LoadRunner tends to be one of the most common but many of these open-source tools can get you most of the functionality you need.