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.
Multiple Protocol support. HTTP, WebSockets, gRPC, 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.
This is what load testing looks like in the 21st century.