Artillery vs K6: licensing, GitHub activity, and what each is actually for. Neutral comparison, no paid rankings.
Artillery: Open source. 9,093 GitHub stars. Node.js load-testing toolkit supporting HTTP, WebSocket, Socket.io, and gRPC with scenario-based workload modeling and a plugin API.
K6: Open source. 31,895 GitHub stars. Developer-centric load testing built for CI/CD. Write in JavaScript, scale to cloud instantly.