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

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

Anyone on your team can load test with instant playback, an easy-to-use interface, and real browsers for reliable data.

Catch performance regressions in CI with Continuous Benchmarking

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.

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