Free browser plugin to measures page load time and displays it in the toolbar.

Cloud-scale performance testing. Effortless load testing and synthetic checks at scale. Cloud-native and open-source. The next evolution of performance testing.

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

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

Test the Performance of Your Website Under Load

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