Codeless automation testing is transforming the test automation landscape by enabling users to create automated tests without writing code, making the process quicker and more efficient. It employs AI and machine learning for self-healing capabilities and supports a variety of platforms, enhancing collaboration and transparency in project development. Notable codeless testing tools include Testsigma, Ranorex, and Tricentis Tosca, offering features that simplify testing and maintain high-quality software delivery.