k6 is described as 'Open-source load testing tool. It's used to test the performance of websites, web apps, APIs and micro-services' and is an app in the development category. There are more than 10 alternatives to k6 for a variety of platforms, including Web-based, Windows, Linux, SaaS and Mac apps. The best k6 alternative is Apache JMeter, which is both free and Open Source. Other great apps like k6 are locust, Guardius, Grafana Cloud k6 and Gatling.io.
Load testing and stress tests for websites, APIs and servers. LoadForge brings affordable, highly scalable, easy to run and understand load testing into the modern SaaS world. Simulate up to 500,000 users from $19 a month.
