Iโve been asked to establish performance/load testing at my company, and Iโm at a loss where to start. The basic requirements sent down by upper leadership is that our site and web app should be able to handle 5,000 โ 15,000 concurrent users. After a bit of online browsing, I see many products available. Iโm looking for something that has a low entry barrier but can also grow with my team and company. LoadNinja by SmartBear seemed like one we could get going right out of the box.
Did you check maybe Gatling: https://gatling.io/
It has a free and commercial version also has a recorder version and code framework version (my recommendation).
Itโs written in scala and it has CI support.