k6

Open-source load testing tool for developers and performance engineers

Code & DevelopmentFreemium

k6 is an open-source load testing tool by Grafana Labs designed for developer-friendly performance testing. Tests are written in JavaScript with a simple API that makes it easy to define virtual users, ramp patterns, and assertions. k6 supports HTTP, gRPC, WebSocket, and browser testing (via k6 Browser), integrates with CI/CD pipelines, and outputs metrics compatible with Grafana dashboards. Its cloud offering enables distributed load generation from 20+ global regions.

Key Features

• ✓JavaScript tests
• ✓HTTP/gRPC/WebSocket
• ✓Browser testing
• ✓Grafana integration
• ✓CI/CD ready
• ✓Cloud load generation