Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

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.

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

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

k6 Open Source is designed for load testing. Extensible to support other types of testing.

The Complete Continuous Testing Platform Any test. Any device. App quality without limits.