Locust is an open source performance/load testing tool for HTTP and other protocols. Its developer-friendly approach lets you define your tests in regular Python code. Locust tests can be run from command line or using its web-based UI

WebLOAD – Performance and Load Testing for the Most Challenging Web Applications

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Skyramp uses deterministic, local-first AI to generate functional & performance tests — with native support for your frameworks, infra-aware execution, and seamless pipeline integration.

Loader.io is a free load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections.

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