TagUI : TagUI is a general purpose tool for automating web interactions
Selenium : Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testin...
Appium : Appium is an open source test automation framework for use with native, hybrid and mobile web apps.
It drives iOS and Android apps using the WebDriver...
New Relic : New Relic’s SaaS-based Application Performance Monitoring helps you build, deploy, and maintain great web software.
Also, server monitoring, and more.
Pa11y : Monitor the accessibility of your websites with pa11y-dashboard, and protect against accessibility errors creeping into your codebase.
Free open source web page change detection. Simply monitor which websites had a text change.