k6

Modern load testing tool, using Go and JavaScript

k6 is a modern load-testing tool, built on our years of experience in the performance and testing industries. It's built to be powerful, extensible, and full-featured. The key design goal is to provide the best developer experience. Its core features are: - Configurable load generation. Even lower-end machines can simulate lots of traffic. - Tests as code. Reuse scripts, modularize logic, version control, and integrate tests with your CI. - A full-featured API. The scripting API is packed with features that help you simulate real application traffic. - An embedded JavaScript engine. The performance of Go, the scripting familiarity of JavaScript. - Multiple Protocol support. HTTP, WebSockets, gRPC, Browser, and more. - Large extension ecosystem. You can extend k6 to support your needs. And many people have already shared their extensions with the community! - Flexible metrics storage and visualization. Summary statistics or granular metrics, exported to the service of your choice. - Native integration with Grafana cloud. SaaS solution for test execution, metrics correlation, data analysis, and more. This is what load testing looks like in the 21st century.