SelectorsHub is the Next Gen XPath Plugin & Selectors tool. It supports all kinds of XPath, locators, shadow dom, iframe, svg, dynamic elements, multi selectors generation and xpath error handling. It is a Free community product.

FlaUI enables reliable end‑to‑end UI automation for Windows applications, offering a clean .NET interface over Microsoft’s UI Automation APIs (UIA2/UIA3) to test Win32, WinForms, WPF, and UWP apps.

mabl is a low-code, intelligent test automation platform for Agile teams.

A free browser plugin that helps developers, content editors, & SEO professionals quickly scan webpage for broken links, valid links & potential issues.

An open source Ruby library for automating tests.

TestQuality is a cloud-based test management platform that integrates with issue and requirements trackers, automation frameworks and (CI/CD) systems. It assists your QA teams in managing and tracking software testing.