Performance Testing

LoadStorm is a performance testing tool. It generates HTTP load from the cloud based on your test plans and user scenarios.


No download or install. No hardware to buy. No server configuration. No scripting language to learn.


Half the cost of our nearest competitor. No license fee. No maintenance fee. Monthly subscription (no annual commitment). Unlimited performance test runs per month.

Massively Scalable.

Test with 50 or 500 or 5,000 or 50,000 concurrent users. We use Amazon EC2 cloud infrastructure. Need high volume? We can deliver.


Your money back if our tool doesn’t fulfill your performance testing requirements. Even better, we will give you a free “Breeze” account to prove to yourself that LoadStorm is a fit for performance testing your web application before you upgrade to a premium account.

FREE FOREVER! Sign up for a Breeze account, and you can run unlimited performance tests with 50 concurrent virtual users all month, every month at no charge.

Use our tool to “STORM” your site with thousands of virtual users.

LoadStorm – performance testing tools for web developers, built by web developers.

Try web performance testing with LoadStorm: