Load Testing Tools

Load testing tools for every situation

Free Load Testing Tools & Software

Free, open source, and scalable API and Selenium load testing.


Legion is a javascript-based load testing tool to control browsers via Selenium or generating API calls directly. It collects and merges performance metrics from various sources and includes a library that makes it quick and easy to describe a testcase.

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Advanced Load Testing

Handle every situation.

Load Tester

Our app can take you from simple local tests with simulated users all the way to 1,000,000 cloud-generated users. Features like GUI test creation and How Many Users? help you quickly find results you need.

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Load Testing Services

For advanced testing needs or special events where you want some extra assurance that things will run smoothly, we can apply our 19 years of expertise to your individual situation.

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Our experienced performance engineers have tuned hundreds of systems for companies large and small, and know just where to look, saving you time to market and money. We'll run your website through a complete performance evaluation, then tell you exactly how many users your site can support, including such important details as the effects of "the last mile." We'll also pinpoint potential problem areas and give you a full report detailing what needs to be fixed and where.

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