Industry 4.0 is reshaping every aspect of production. This modern industry necessitates a faster-than-ever evolution of all aspects of the networks. In this case, validation and verification occur as critical phases in the life cycle of software projects. A software failure could have devastating effects, so it is critical that all applications function correctly in development. Without automation, testing cannot be effective in today's world. We need automation to minimize repetitive work and to ensure that the time from development to production is shortened while maintaining high quality. As a result, automated testing is critical in the software testing phase. This study aims at exploring and comparison of few popular tools in the realm of Web UI automation, API automation, mobile app test automation.