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

Orderly Ape is an open source (MIT) tool to run distributed and scalable k6 load tests on your own infrastructure using k6, kubernetes, grafana and influxdb.

Robot Framework is a generic open source automation framework. It can be used for test automation and robotic process automation (RPA).

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

Automated robustness testing at the UI level

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