mock : A Python Mocking and Patching Library for Testing
Browserling : Live interactive cross-browser testing
BeEF : The Browser Exploitation Framework (BeEF) is a powerful professional security tool. BeEF is pioneering techniques that provide the experienced penetra...
Cypress : JavaScript End to End Testing Framework. Fast, easy and reliable testing for anything that runs in a browser.
SlimerJS : A scriptable browser for Web developers
ghost.py is a webkit web client written in python.