Gatling
Load testing as code in Java, JavaScript, TypeScript, Kotlin or Scala
Artillery
Load testing for HTTP, WebSocket, gRPC and Playwright scenarios
Taurus
Automation-friendly wrapper for JMeter, Gatling, Locust and Selenium
Fortio
HTTP and gRPC load testing at a set queries-per-second rate
Vegeta
HTTP load testing at a constant request rate
wrk
HTTP benchmarking with multithreaded, event-driven load generation