Chromeless : Chrome automation made simple. Runs locally or headless on AWS Lambda.
Chromeless can be used to...
Run 1000s of browser integration tests in paralle...
Cypress : JavaScript End to End Testing Framework. Fast, easy and reliable testing for anything that runs in a browser.
mock : A Python Mocking and Patching Library for Testing
Locust : A modern load testing framework
Define user behaviour with Python code, and swarm your system with millions of simultaneous users.
SlimerJS : A scriptable browser for Web developers
ghost.py is a webkit web client written in python.