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Performance Testing Tools

While many facets of software testing can be done manually, performance testing is not one of them. It is highly dependent on testing tools, both to perform the actual tests and to help analyze and chart the results.

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While many facets of software testing can be done manually, performance testing is not one of them. It is highly dependent on testing tools, both to perform the actual tests and to help analyze and chart the results. Because of that fact, finding the right tool for the job is crucial. Different tools are better in different environments and codebases, and of course different budgets. Below is a list of the tools most often used by QA Mentor’s performance testing specialists.

HP LoadRunner

HP LoadRunner is the industry standard for application performance testing. The load testing tool helps you prevent issues by detecting bottlenecks and to obtain an accurate picture of end-to-end system performance before going live. Extremely flexible for organizations and projects of all sizes, LoadRunner software testing tool enables you to test a range of applications including mobile, Ajax, Flex, HTML 5, .NET, Java, GWT, Silverlight, SOAP, Citrix, ERP and legacy.

Verisium (vPerformer)

Verisium (vPerformer) is a performance testing tool that is used to measure the performance, scalability and load stress capacity of web applications. vPerformer is capable of instantaneous large-scale virtual load generation in the cloud that would often be too costly and time consuming for you to setup internally. Dynamic load generation allows you to test against any number of virtual users, and pay only for the time your tests are running. The vPerformer Cloud realistically models user traffic by enabling you to run vPerformer Load Agents at different locations around the globe. vPerformer provides you with the tools to monitor not just the web application under test but also any of its associated components. This includes web servers, application servers, database servers, operating systems, network components, and the various SNMP implementations. This allows you to locate performance bottlenecks and pinpoint the root causes of any performance issues. Unlike many other performance testing tools, monitoring features are available in vPerformer at no additional cost.

Apache JMeter

Apache JMeter is open source load testing tool. Primarily a performance testing tool, it can also be integrated with the test plan. In addition to the load test plan, you can also create a functional test plan. This tool has the capacity to be loaded into a server or network so as to check on its performance and analyze its load under different conditions. Initially, it was introduced for testing web applications, but later its scope widened. It is of great use in testing the functional performance of resources such as Servlets, Perl Scripts and JAVA objects. Need JVM 1.4 or higher to run.


WebLOAD is a load testing and stress testing tool for web applications. This tool can be used for Load testing any internet applications such as Ajax, Adobe Flex, Oracle Forms and much more. Through WebLOAD, you have the ability to measure the working performance and also its response to the users. This award winning tool was developed by Radview Software. WebLOAD is widely used in environments where there is a high demand for maximum load testing, as it gives you clear information on the functionality and the actual capacity of the web applications.


Loadster is a desktop based, advanced HTTP load testing tool. The web browser can be used to record the scripts which are easy to use and record. Using the GUI you can modify the basic script with dynamic variables to validate response. With control over network bandwidth you can simulate large virtual user base for your application stress tests. After a test is executed, an HTML report is generated for analysis to help identify performance bottlenecks in your application.

Testing Anywhere

Open STA stands for Open System Testing Architecture. This is a GUI based performance tool used by application developers for load testing and analyzing. A complex tool, it has proven capability and the current toolset is capable of performing a heavy load test and analysis for the scripted HTTP and HTTPS. The testing is executed by using the recordings and simple scripts. To carry out the test successfully, results and other statistics are taken through various test runs. This data can be later exported as reports. This is a free testing tool and it is distributed under GNU by Cyrano, which was later taken over by Quotium.


Loadstorm is a cloud testing tool for web applications. With Loadstorm, you have the option of creating your own test plans, testing criteria, and testing scenarios. You can generate up to 50,000 concurrent users in the cloud infrastructure, which enables you to send a large amount of requests per second. There are thousands of servers available around the world for this software, and there is no need of any scripting knowledge to use it. Loadstorm provides many graphs and reports that measure the performance in various metrics such as error rates, average response time and number of users. This tool is available for free, but the premium account comes with added features.


Httperf is a high performance testing tool for measuring and analyzing the performance of any web services and web applications. This is mainly used to the test the HTTP servers and its performance. The main objective of this testing tool would be to count the number of responses generated from this particular server. This generates the HTTP GET requests from the server which helps in summarizing the overall performance of the server. Through this tool, you will be able to conclude the rate at which the response is sent from each server and thereby the efficiency can be calculated. The ability to sustain the server overload, support the HTTP/1.1 protocol and compatibility with new workload are the three key features of this performance testing tool. This was originally developed by David Mosberger and many others at HP.


OctoPerf is a SaaS software aimed to improve quality and performance of web and mobile applications. OctoPerf lets you create thousands of realistic virtual users in a few clicks. No code to write, it all happens in the intuitive GUI. With the essence of JMeter, its core features, Octoperf is a performance testing service on top of it. So you can benefit from the power of the best Open-Source load testing tool without even bothering installing it. It allows to import JMX records and export reports. Its reactive and modern GUI made with AngularJS lets helps to design realistic virtual user in an accessible way. It is also capable of generating performance tests reports. These reports are populated with live metrics thanks to ElasticSearch. Amazon Web Services and Mesos allows you to simulate users visiting your website or application from across the globe.

Neotys (Neoload)

Neotys (Neoload) is the Load & Web Performance Testing Tool for all of your Web & Mobile Applications. Neoload realistically simulates user activity, analyzes server behavior and pinpoints bottlenecks. It also supports performance testing the latest web, mobile and RIA technologies AJAX, HTML 5, SPDY, JSON, Flex, GWT, Oracle Forms, Silverlight, RTMP, Push technologies, Java serialization, .NET, J2EE, SOAP, SAP, Siebel and more!

Borland (Silk Performer)

Borland (Silk Performer) has the versatility of shared licensing, technical accuracy, wide environment support, and uses testing hardware more efficiently. Silk Performer is an integrated, powerful and easy-to use load and performance testing solution for optimizing the performance of business applications. This tool makes it easy to create accurate and realistic tests that simulate tens – or even tens of thousands – of users in a wide range of enterprise environments including the latest web 2.0 and mobile technologies. Silk Performer’s tests isolate issues and bottlenecks that could impact reliability, performance and scalability. Intuitive diagnostic and analysis capabilities within Silk Performer help resolve those issues quickly, reducing test-and-fix cycles, accelerating time-to-market and supporting critical release decisions related to application performance.


NeoLoad is a tool used for measuring and analyzing the performance of the website. The performance test itself and the results can be evaluated by using this tool. This helps you in improving and optimizing the performance of your web application. NeoLoad analyzes the performance of the web application by increasing the traffic in order to see in real time the performance of the site under load. You can get to know the capacity of the application and the amount of simultaneous users it can handle. This tool was developed by the French company, Netosys, is written in JAVA, and is available in both English and French.


LoadUI is an open source load testing tool used for measuring the performance of web applications. This tool works effectively when it is integrated with the functional testing tool, soapUI. LoadUI is a very flexible, interactive testing tool. This allows you to create, configure, and update your tests while the application is being tested. It also gives a visual aid for the user with a drag and drop functionality. The advanced analysis and report generating features allow you to examine the actual performance by pumping in new data even while the application is being tested. You need not bother to restart the LoadUI each and every time you modify or change the application. It automatically gets updated in the interface.


WAPT is a performance testing tool for web sites and intranet applications. WAPT stands for Web Application Performance tool. WAPT has analyzing tools for measuring the performance and output of any web application or web related interfaces. With this tool you have the advantage of testing the web application performances in various different environments and different load conditions. WAPT provides detailed information about the virtual users and it presents this information to its users during the load test execution. Considered to be the most cost effective tools for analyzing the performance of the web services, WAPT can also test the web application browser and OS compatibility.


LoadImpact is a load testing tool mainly used in cloud-based services. It also helps in website optimization and improvement of any web application. This tool generates traffic to the website by simulating users so as to find the stress and maximum load. LoadImpact is comprised of two main parts – the load testing tool and the page analyzer. Load testing can be divided into fixed, ramp up, and timeout. The page analyzer works similar to a browser and it gives information regarding the working and statistics of the website. Developed by Gatorhole AB, this is a freemium service which means that it can be acquired for free with limited features, with a full feature version available for a price.

Rational Performance Tester

Rational Performance Tester is an automated performance testing tool which can be used for a web application or a server-based application where there is a process of input and output involved. This tool creates a demo of the original transaction process between the user and the web service. By the end of the test execution, the statistical information is gathered and analyzed. Any leakage in the website or the server can be identified and fixed immediately with the help of this tool. This tool can be the best option in building an effective and error free cloud computing service. Rational Performance tester was developed by IBM (Rational software division).

QEngine (ManageEngine)

QEngine (ManageEngine) is an easy-to-use, free automated testing tool for performance and load testing of your web applications. It’s a simple and easy tool for finding leakage in web services or websites. The key important feature of this testing tool is its ability to perform remote testing of web services from any geographical location. QEngine (ManageEngine) also offers other testing options such as functional testing, compatibility testing, stress testing, load testing and regression testing. This automated testing tool has the capacity to generate and simulate many users so that the performance can be well analyzed during the maximum load.

CloudTest (SOASTA)

CloudTest (SOASTA) is a performance testing tool for cloud testing in a virtual lab. Users can cost effectively carry out their performance testing in the cloud. CloudTest has the capacity to simulate 100 concurrent users in its free version and can incrementally increase traffic as needed for a price. The cost over 100 users is dependent on how many users you want to simulate, and the length of time for the test execution. CloudTest has remarkable reporting and drilldown analytics available, with a customizable dashboard and top of the line customer support. Training tools are available for free as well.


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