Make your backend faster, more scalable, and more resilient with Artillery.
Artillery is a modern load-testing framework. It offers rich functionality, has a strong focus on developer happiness and a batteries-included philosophy, and is open-source.
$ npm install -g artillery
By Node.js developers, for Node.js developers 
- ✓ Mutiple protocols: HTTP(S), Socket.io, WebSockets out of the box
- ✓ Scenarios: Test with multi-step scenarios
- ✓ Detailed perfomance metrics: latency, requests per second, concurrency, throughput
- ✓ Scriptable: write custom logic in JS to do pretty much anything
- ✓ Integrations:
statsdsupport out of the box for real-time reporting (integrate with Datadog, Librato, InfluxDB etc) - ✓ Extensible: custom reporting plugins, custom protocol engines etc
- ✓ High performance: generate serious load on modest hardware
- ✓ ...and more! HTML reports, nice CLI, parameterization with CSV files