Selenium provides support for the automation of web browsers. It provides extensions to emulate user interaction with browsers, a distribution server for scaling browser allocation, and the infrastructure for implementations of the W3C WebDriver specification.

Selenium automates browsers. That's it!

Atlassian WebDriver Core

Selenide = concise API for Selenium WebDriver

Vaadin TestBench

A suite of tools to help with Selenium test harness, assertions etc.

Provides resources and functionality for linking confluence with hipchat.

XLT (Xceptance LoadTest) is an extensive load and performance test tool developed and maintained by Xceptance.

An utility to manage WebDriver instances

This is the HipChat plugin for JIRA

WebDriver extensions following Decorator design pattern