k6
k6 is an open-source load testing tool designed for developers to test the performance and reliability of APIs, microservices, and websites. It uses JavaScript for scripting test scenarios and focuses on developer-friendly features like easy integration into CI/CD pipelines. k6 is known for its efficiency in simulating high loads with minimal resource consumption.
Developers should learn k6 when they need to perform performance testing, especially in modern DevOps environments where automated testing is critical. It is ideal for load testing APIs and web services to ensure they can handle expected traffic, identify bottlenecks, and validate performance under stress. Use cases include testing backend services before deployment, monitoring performance in production, and integrating performance tests into continuous integration workflows.