Load testing helps you determine how your system performs under different loads. It is essential to test software performance in realistic environments, identify underlying vulnerabilities, and ensure software quality. Without load testing, it’s difficult to mitigate the risks of your software crashing after the release.
Effective testing is all about choosing the best load testing tool, which is just right for you. Top performance testing tools help simulate virtual users and execute test scripts. As the software market is full of various options ranging from open-source to premium, it’s difficult to find the best load testing tool for your business. In this article, we will share our list of top software load testing tools and take a closer look at their pros and cons.
Apache JMeter is simply one of the best free load testing tools for developers. It is the most popular tool, too, so we’re giving it the first place, and it is beyond dispute. It supports a 100% Java-scripted desktop application and tests functional performance of web applications, as well.
Since Apache JMeter is available in an open-source format, it is highly accessible to software businesses of all sizes. The testing tool is extremely versatile, despite being open-source. It is compatible with several web and networking protocols such as HTTP, HTTPS, FTP, LDAP, SOAP, and TCP. Since the application has a Java-oriented system, it also offers compliance with JDBC and Message-oriented middleware (MOM) through JMS.
The option of using shell scripts and native commands for testing procedures makes it easier to implement.
Lastly, you can use JMeter to test applications for both dynamic and static resources. Therefore, users can utilize resources such as servers, logs, queries, scripts, and files during testing. At the same time, testers can also inspect applications under heavy load and evaluate their robustness and performance against different load types.
Apache JMeter is one of the best open-source load testing tools for businesses of all sizes. The tool gives its users various useful testing features for free and users can customize it according to their needs.
Micro Focus LoadRunner, previously known as HP LoadRunner, is a highly sophisticated software load testing tool that detects performance issues in web applications. Nevertheless, it is not limited to testing web applications or services. It is also optimized for testing ERP software and legacy system applications, as well as Web 2.0 technologies.
Moreover, Load Runner is the tool to test old-fashioned proprietary protocols, so we believe that the second place in this list is nothing but fair for it.
LoadRunner enables software testers to have complete visibility over their system’s end-to-end performance. It is specialized in detecting bottlenecks before the application enters the implementation phase. Thus, users can evaluate each component individually before it goes live.
Similarly, LoadRunner is helpful when detecting performance gaps before implementation or an upgrade of a new system. At the same time, it provides users with highly advanced predictive features to forecast expenses for up-scaling application capacity. Due to accurate predictions of expenses related to hardware and software, it is easier to improve the capacity and scalability of your application.
LoadRunner supports all kinds of protocols related to its services.
Virtual user days
Get 50 virtual user licenses for life
Gives you the option to add more virtual users
Contact vendor for quotation
Starts at $1.40 per virtual user day
Micro Focus LoadRunner is a highly sophisticated and versatile load testing tool optimized for testing various platforms. However, due to its price the tool is more suitable for medium- to large-sized organizations.
Boomq.io is the new generation load testing tool which allows running complex tests in the cloud to anyone interested in load testing. You can be a marketer, product or project manager, developer or, naturally, a performance engineer: anyway, you will find boomq.io really useful.
We put it on the third place in the list, since it is super handy to compare the results of the tests, and trend reports help to localize the bottlenecks really quickly.
Boomq.io provides an easy-to-use instrument for marketing specialists. It allows import of load profile data from Google Analytics, Yandex.Metrika and other sources, retrieves statistical information and lets you run performance tests without any coding or other engineering. You don’t even need to know any programming languages.
Developers and performance engineers will find boomq.io handy for conducting performance tests in the cloud. They can use a full suite of testing tools, such as HAR/Insomnia import, request definition, parameterization and correlation running in the cloud as SaaS service. You can also manage and reuse tests, centralize the assets, compare the results between the tests, see trends across time and share results and reports. No need to worry about infrastructure deployment, though.
Product and project managers will find it easy to analyze the results of the recurring tests online using detailed web-accessible dashboards.
Overall, boomq.io represents a new generation of performance testing products which allow users to easily create, plan, run and execute tests in the cloud using a simple and straightforward web interface.
1 concurrent test
1 concurrent test
Ask vendor for quotation
10 users max
200 users max
5000 users max per month
15 minutes max test duration
60 minutes max test duration
48 hours max test duration
5 test runs total
10 tests per month
1000 tests per month
Boomq is a cloud-based subscription solution, so you only pay for what you use. A free license allows up to 5 test runs, while pricing for more tests starts at $50 per month. You save money, as there is no need to hire staff, and product operations are included into the subscription cost.
Are you testing a website, API or an app? Use load testing platform boomq.io to accelerate your testing cycles by a magnitude. If you don’t have any experience in performance testing, it’s all right: you don’t need it with boomq.io.
The rest of the tools are listed according to how frequently we use them in our testing experience. Since we provide load testing and performance testing services, you can trust us that the tools listed below do deserve your attention, too.
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If you are familiar with Scala, Gatling is a code-based open source load testing tool just right for you. It allows you to simulate thousands of requests and get a complete report of the execution, with just a few load generators. You can also embed continuous integration processes using Jenkins. For long term projects, consider using a Gradle, Maven or SBT Gatling project.
After the testing is completed, you get an automated report, which is dynamic and colourful. All that is left is to analyze it.
Demo for 5 days
1 user account
10 user accounts
10+ user accounts
Duration: 1 hour
Duration: 24 hours
Duration: 24 hours+
Gatling was created to write tests in Scala, so for that purpose it would be just perfect.
The tests are run in console mode, and test results are also output to the console by default, but plugins for displaying results as Kafka, Datadog, InfluxDB, JSON and StatsD are available.
K6 has not only an open source version, but also a dense cloud version with additional functionality and load scaling.
Up to 50 load tests
1200 tests per year
2400 tests per year
2400 tests per year
200 virtual users
1000 virtual users
5000 virtual users
Developers who are interested in testing and want to write high-performance code, as well as businesses that are unable, for the moment, to organize independent testing.
LoadNinja is an easy-to-use load testing tool that allows users to create sophisticated load tests without any scripts. As a result, users can reduce their testing time by 50% and replace load emulators with real browsers.
The tool provides options for actionable browser-based metrics, which lets you evaluate the performance of your application. You can also debug in real-time, identify performance problems, and capture client-side interactions quickly.
LoadNinja also enables teams to enhance their test coverage without the need to compromise on software quality. It helps users minimize complex and time-consuming procedures, such as script translation, script scrubbing, and dynamic correlation. With the help of this testing tool, software testers don’t have to spend time creating test scripts and can focus on building scalable apps.
Contact vendor for a quotation
8 load hours
8 load hours
8 load hours
LoadNinja is an excellent software testing tool for web developers and software testers who want to implement scriptless testing procedures. However, the pricing plan makes it more suitable for medium- to large-sized businesses.
WebLOAD is an enterprise load testing tool that allows its users to generate reliable, real-world load scenarios. It is a reliable tool that even works for complex systems and provides users with advanced features, such as performance insights or smart analytics. At the same time, the tool is based on a flexible platform that offers built-in support for several technologies, as well as integration with a number of tools ranging from performance monitoring to CI/CD pipelines.
WebLOAD is a comprehensive load testing tool that enables businesses of all sizes to test websites, applications, and enterprise-level applications.
BlazeMeter is a software testing vendor that provides performance and load testing services. The service hosts an innovative and comprehensive Continuous Testing Platform that enables enterprises to shift left. The web-based interface of the application is useful for creating static load tests and using JMeter scripts to execute dynamic load tests.
BlazeMeter is famous for fully utilizing the best open-source load testing tool – Apache JMeter. It provides various enterprise features to the free platform. In other words, users can gain access to many advanced features, such as application performance monitoring (APM), real-time reporting, distributed testing, and integration with developer tools for continuous integration (CI).
50 concurrent users
1,000 concurrent users
5,000 concurrent users
Contact vendor for a quotation
6,500 virtual user hours/month
BlazeMeter is an excellent load testing tool for organizations already using Apache JMeter. Regardless of the size of your business, you may find the tool useful.
NeoLoad is a popular testing tool for web or mobile applications testing under heavy load. It is written in Java. NeoLoad has all the necessary functions to perform such tests and analyze the data obtained. By simulating a large number of vusers, NeoLoad allows you to analyze not only the response time of the system to incoming requests, but also to check the performance of the entire server infrastructure, including the databases and the web server.
The number of virtual clients in the load test, which is carried out using NeoLoad, can easily vary from 50 vusers (for free) to 100 thousand to half a million.
NeoLoad’s cross-platform capabilities allow you to generate load on various platforms – Unix, Windows, Linux.
Flexible: pay-as-you-grow policy.
If you need to load test an API or web app, NeoLoad can handle much of what you need.
Locust is an open-source framework written in Python. It’s easy-to-scale, since its architecture is event-driven. The code on GitHub is open, so the community is growing.
Locust requires at least basic knowledge in the field of programming. Fortunately, the developers have prepared some very detailed documentation with a full description of the framework capabilities, as well as examples of code, tests, preparing Locust for a distributed load, launching via Docker, etc.
HTTP/HTTPS protocol, but as the developers assure, you can write your own implementations relative to other protocols. They provide examples of tests for the XML-RPC and gRPC protocols.
Free, open-source solution.
Primarily for those familiar with Python and in a hurry to conduct load testing for their service without having to deal with the specifics of testing on such complex tools as LoadRunner or JMeter. If there are protocols other than HTTP/HTTPS in your project or you are not familiar with Python, it is better to look towards other solutions for load testing.
When it comes to the best software load testing tool, there is no universal solution. If you want to find the best performance testing tool for your company, review each option closely and select the one that fits your needs the best.
PFLB is a software performance and load testing service dedicated to providing quality load testing to our clients. We have served over 500 companies across a wide variety of domains that range from finance and healthcare to retail and technology.
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