trimstray/htrace.sh: My simple Swiss Army knife for http/https troubleshooting and profiling.

tebelorg/TagUI: General purpose tool for automating web interactions

Open source load testing tool for more flexible performance testing

elgalu/docker-selenium: Selenium in Docker solution with Chrome and Firefox and video recording support

BBC-News/wraith

Browsersync - Time-saving synchronised browser testing

Locust - A modern load testing framework

memio/spec-gen

UX Check

tkadlec/grunt-perfbudget

typicode/json-server

skipfish - web application security scanner - Google Project Hosting

sj26/mailcatcher

Spec BDD with phpspec — phpspec documentation

virtPHP

gremlins.js/README.md at master · marmelab/gremlins.js

Resemble.js : Image analysis

GAUNTLT - Go Ahead, Be Mean To Your Code - Security and Rugged Testing

Intern: A next-generation JavaScript testing stack

Sitespeed.io - Analyze your website speed and performance

Presenting Play

TrifleJS

Introduction: CSS Testing :

mobitest-agent - Akamai Mobitest: Mobile Web Performance Measurement Agents - Google Project Hosting

Web acceptance testing — Mink 1.3 documentation

Xvfb Plugin - Jenkins - Jenkins Wiki

Create a new Fiddle - jsFiddle - Online Editor for the Web (JavaScript, MooTools, jQuery, Prototype, YUI, Glow and Dojo, HTML, CSS)

asenchi/proclaim - GitHub

Zombie.js

newsapps's beeswithmachineguns at master - GitHub