Compare the Top Load Testing Tools in the USA as of April 2025

What are Load Testing Tools in the USA?

Load testing tools are used to test and verify the quality and performance of an application under workload in order to get rid of problems. Compare and read user reviews of the best Load Testing tools in the USA currently available using the table below. This list is updated regularly.

  • 1
    NeoLoad

    NeoLoad

    Tricentis

    Continuous performance testing software to automate API and application load testing. Design code-less performance tests for complex applications. Script performance tests <as:code /> within automated pipelines for API testing. Design, maintain and run performance tests as code and analyze results within continuous integration pipelines using pre-packaged plugins for CI/CD tools and the NeoLoad API. Create test scripts quickly for large, complex applications using a graphical user interface and skip the complexity of hand coding new and updated tests. Define SLAs based on built-in monitoring metrics. Put pressure on the app and compare SLAs to server-level statistics to determine performance. Automate pass/fail triggers based on SLAs. Contributes to root cause analysis. Update test scripts faster with automatic test script updates. Update only the part of the test that’s changed and re-use the rest for easy test maintenance.
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  • 2
    Parasoft

    Parasoft

    Parasoft

    Parasoft helps organizations continuously deliver high-quality software with its AI-powered software testing platform and automated test solutions. Supporting embedded and enterprise markets, Parasoft’s proven technologies reduce the time, effort, and cost of delivering secure, reliable, and compliant software by integrating everything from deep code analysis and unit testing to UI and API testing, plus service virtualization and complete code coverage, into the delivery pipeline. A powerful unified C and C++ test automation solution for static analysis, unit testing and structural code coverage, Parasoft C/C++test helps satisfy compliance with industry functional safety and security requirements for embedded software systems.
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    Starting Price: $125/user/mo
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  • 3
    TAST

    TAST

    SIPSA

    TAST, Test Automation System Tool is a comprehensive cloud test automation framework that enables businesses to maximize their test automation across the complete testing process from an End User´s perspective. It is easy to use and its graphical interface defines the automated test cases across technological platforms. TAST automates: *Cross Browser testing *Mobile testing *Desktop applications testing *DDBB testing: Oracle, PostgreSQL, MySQL, Db2. *File testing: txt, pdf, word, excel, csv, xml. *Mainframe testing: AS400, Host *APIs testing *Interface testing. *Remote Server testing. Types of tests you can automate with TAST: *Integration *Functional *System: Regressive, stress, load, parallel *Acceptance *A/B.
  • 4
    ZAPTEST

    ZAPTEST

    ZAPTEST Inc.

    ZAPTEST is a leading Free and Enterprise software test automation and RPA tool. Offerings include Computer Vision technology that allows for Cross-Platform digital interface automation for UI, API, Load testing, and RPA in a seamless process. Combine that with our 1SCRIPT methodology, seamless automation, parallel execution, and unlimited licenses– you get an efficient testing suite that generates up to 10X ROI. We promise that if you can perform a procedure via any digital interface (live application or mockup) manually, ZAPTEST can automate this procedure As-Is! With ZAPTEST’s Enterprise Solution subscription program, you receive unlimited licenses across the entire organization. Regardless of whether your automation needs increase, your cost remains fixed. FARM allows ZAPTEST users to manage all of their devices so you can remotely control cross-environments and projects from any location. ZAPTEST uses many practical applications to enhance its software testing software capabilities
  • 5
    Rapise

    Rapise

    Inflectra

    Rapise is a robust, next-generation test automation platform for desktop, mobile, and web applications developed by Inflectra. Using the power of open and extensible architecture, Rapise delivers the most rapid and flexible functional testing tool. Rapise comes with a built-in support for testing desktop platforms such as Microsoft Windows GUI applications; cross-platform applications that are written using Swing, Java, Qt, and SWT; and packaged applications that include Microsoft Dynamics AX & NAV.
    Starting Price: $799.99/one-time
  • 6
    WebLOAD

    WebLOAD

    RadView Software

    RadView WebLOAD is a leading enterprise AI-based performance and load testing solution for testing web, mobile, and packaged applications. It supports over 150 protocols and technologies, including all common front-end frameworks, APIs, message queues, and databases, enabling load testing across any enterprise technology stack. RadView WebLOAD.AI, is available as SaaS and can also be self-hosted on-premise or in the cloud. It is highly scalable and can simulate hundreds of thousands of concurrent users from different locations and cloud platforms. With its smart and easy generation of reliable tests and its powerful AI-based analytics capabilities, RadView WebLOAD makes performance teams highly successful in detecting and quickly resolving performance issues even for the most complex environments. This makes RadView WebLOAD the solution of choice for many performance experts. RadView WebLOAD has built-in integration into most of the popular Testing, CI/CD and APM tools.
  • 7
    Empirix

    Empirix

    Empirix

    Empirix is a global solution provider of service assurance automation that protects brand quality by offering cloud-native, open, and flexible, by design best-in-class test automation and network visibility software. Service providers, enterprises and equipment manufacturers all over the world recognize Empirix as the best – the most thorough and reliable – vendor of IP communications service quality in the market, and they readily accepted Empirix results as a credible standard for resolving inter-vendor problems.
    Starting Price: $30/Month Transactions
  • 8
    Insomnia
    Design, debug, and test APIs like a human, not a robot. Finally, a workflow you'll love. The Collaborative API Design Tool for designing, testing and managing OpenAPI specifications. The Desktop API client for REST and GraphQL. Make requests, inspect responses. Quickly create and group requests, specify environment variables, authentication, generate code snippets, and more. Get all the details on responses. View the whole request timeline, status codes, body, headers, cookies, and more. Create workspaces, folders, environments, drag-and-drop requests, and easily import and export your data. Create, edit, lint, debug, preview, and manage all of your OpenAPI specs in one collaborative API design editor. Generate configuration for common API gateways such as the Kong API Gateway, and Kong for Kubernetes. Sync your API designs with source control such as Github / Gitlab, and deploy directly to API Gateways such as Kong with one click.
    Starting Price: $5 per month
  • 9
    Loadium

    Loadium

    Loadium

    Use the most powerful open source load testing tool for load and stress testing. Get your dedicated IPs from all over the world to simulate user load for your load tests when you work with security regulations. Use your automated test scripts developed with Selenium for performance testing. Rather than using just local data centers, generate load from different regions more realistic load tests. Monitor app performance during test runs by amazing reporting features with tabular or graphical data. Shift left and integrate your performance tests into DevOps process with your favorite CI tool. Monitor app infrastructure with APM tools. Performance Testing is a type of software testing which guarantees that the application is performing well under the defined user load. Main purpose of performance testing is not to find bugs but to eliminate performance bottlenecks. It evaluates the quality attributes of the system.
    Starting Price: $39 per month
  • 10
    BlazeMeter

    BlazeMeter

    BlazeMeter

    BlazeMeter’s open-source based, enterprise ready platform unifies all the functionality you need to shift testing left - and right. Use our intuitive UI to create tests or reuse your existing scripts and run them at scale as part of your continuous testing strategy. Test and generate detailed reporting and see historic trends. Spend more time innovating & less time maintaining your toolchain. Continuous testing is key to delivering with quality, volume, and velocity. But integrating, maintaining, learning and switching between multiple tools wastes valuable time and resources. BlazeMeter makes it easy with a super intuitive platform that does it all. BlazeMeter delivers complete shift left testing, so you can wow the marketplace with innovation. BlazeMeter provides all the components you need for shift left continuous testing. Work with CLIs, APIs, UI, open source tools, and more. Save HUGE time with setup, maintenance, learning, and day to day use.
    Starting Price: $149 per month
  • 11
    WAPT Pro

    WAPT Pro

    SoftLogica

    We can provide a more specific service upon request. For example, to employ the client’s QA team for the test run, we can prepare test source files and license the required WAPT Pro components. We can also assist with the analysis of the results after the test is completed. On average, one-time testing projects are completed in a week while recurring arrangements are also available. Additionally, we can help establish a client testing environment for regression testing. Test development may be a complex task, because each emulated session must be unique and consistent. Unless the website consists of exclusively static pages, there is no testing tool that can fully automate the test design process. In many cases the implementation may require considerable research of the client-server communication scheme. While a good testing tool may create a detailed report with data and charts showing different performance parameters.
    Starting Price: $700 one-time payment
  • 12
    Loadster

    Loadster

    Loadster

    Loadster is a load testing platform for websites, web applications, and APIs. Your site has a breaking point. Loadster can find it before your users do! Create realistic test scripts and play them back with thousands of virtual users to find bottlenecks, improve performance, and prevent crashes. Record load test scripts right in your browser, with the Loadster Recorder extension for Chrome or Firefox. Just step through your site like a real user would while Loadster records every step into a script. After recording, play your script back in real time, and edit it if necessary. It's simple to add custom validation and capture server responses to reuse later in the script. Configure your test scenario with groups of bots in regions of your choosing, running your scripts, ramping the load up and down, to simulate the geographically distributed traffic you see in the real world.
    Starting Price: $299 per month
  • 13
    Eggplant

    Eggplant

    Keysight Technologies

    At Eggplant we empower organizations to create amazing digital experiences. We help businesses to test, monitor and analyze their end-to-end customer experience and continuously improve their business outcomes. Companies worldwide use Eggplant to surpass competitors, boost productivity, and delight customers. How? By dramatically enhancing the quality, responsiveness, and performance of their software applications across different interfaces, platforms, browsers, and devices - including mobile, IoT, and desktop — in agile, DevOps, and innovative application and data environments. As software release cycles accelerate, manual testing can't keep up. AI automatically discovers user journeys, hunts for bugs and performs image-based UI tests from the user POV. Build better software with fast, broad, accurate AI-powered testing. To keep up with DevOps, continuous testing is key, streamlining development and automating the testing process.
  • 14
    Appvance

    Appvance

    Appvance.ai

    Appvance IQ (AIQ) delivers transformational productivity gains and lower costs in both test creation and execution. For test creation, it offers both AI-driven (fully machine-generated tests) and also 3rd-generation, codeless scripting. It then executes those scripts through data-driven functional, performance, app-pen and API testing — for both web and mobile apps. AIQ’s self-healing technology gives you complete code coverage with just 10% the effort of traditional testing systems. Most importantly, AIQ finds important bugs autonomously, with little effort. No coding, scripting, logs or recording required. AIQ is easy to integrate with your current DevOps tools and processes. Appvance IQ was developed by a pioneering team who envisioned a better way to test. Their innovative vision has been made possible by applying differentiated, patented AI methods to test creation while leveraging today’s high-availability compute resources for massive levels of parallel execution.
  • 15
    Cavisson NetStorm

    Cavisson NetStorm

    Cavisson Systems

    Cavisson NetStorm is a cost-effective, performance-enhancing and easy-to-use solution for enterprise applications. It is an extremely powerful load generator that provides an accurate estimation of Client Perceived Response Time (CPRT) enabling IT companies to guarantee the Service Level Agreements (SLA). Its advanced technology efficiently handles load variables, user realism, application realism and network realism. NetStorm is a proven solution providing root cause of the issues where legacy solutions failed, prompting Several Fortune 100 companies to switch over to using NetStorm. Massive load generation for accurate estimation of client perceived response time. Handle load variables, user, application, and network realism. As the web matures, two opposite trends are converging Web business providers want to increase the bottom line while Web users are becoming less forgiving. By using NetStorm, companies can spend their IT budget more intelligently.
  • 16
    Oracle Application Testing Suite
    Oracle Application Testing Suite is a comprehensive, integrated testing solution that ensures the quality, scalability, and availability of your Web applications and Web Services.
  • 17
    JMeter

    JMeter

    Apache Software Foundation

    The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications. It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.
  • 18
    Locust

    Locust

    Locust

    An open source load testing tool. Define user behavior with Python code, and swarm your system with millions of simultaneous users. No need for clunky UIs or bloated XML. Just plain code. Locust supports running load tests distributed over multiple machines, and can therefore be used to simulate millions of simultaneous users. A fundamental feature of Locust is that you describe all your test in Python code. No need for clunky UIs or bloated XML, just plain code. The easiest way to install Locust is from PyPI, using pip.
  • 19
    ITRS Load Testing
    Ensure scalability on websites, apps and APIs. For the always-on enterprise. Control the ramp and bandwidth of over thousands of global virtual users and simulate real-world dynamics. Integrate with AppDynamics, New Relic, and Dynatrace to drill down, pinpoint critical issues, and identify root-cause. Measure the quality of user experience by viewing a stream of real browser render times and screenshots while tests run. Get feedback in real time, adjust parameters on the fly, and find optimal concurrency, breakage points and peaks. Consumer expectations are at an all-time high. Users demand a near instantaneous experience across all devices, and at all times. To compound this, business and IT leaders recognizes their mission-critical application stack is growing and becoming increasingly complex. When sluggish response times, performance bottlenecks, and full-blown website and application failures drive visitors away, the end result is lost revenue and reputational damage.
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