Introduction to Gatling
Gatling is an open-source testing framework based on Scala. It’s gaining a lot of popularity with more than 3 million downloads in the last 3 years.
Its available as open-source as well as enterprise variant called Gatling Frontline with more integrations and support from the Gatling team. But all practical use cases could be worked upon using the Gatling community edition which is open-sourced and free.