In web application development, testing forms an increasingly large portion of software engineering costs due to the growing complexity and short time-to-market of these applications. This paper presents a hybrid testing automation framework (HTAF) that can automate routine works in testing and releasing web software. Using this framework, an individual software engineer can easily describe his routine software engineering tasks and schedule these described tasks by using both his local machine and global cloud computers in an efficient way. This framework is applied to commercial web software development processes. Our industry practice shows four example cases where the hybrid and decentralized architecture of HTAF is helpful at effectively managing both hardware resources and manpower required for testing and releasing web applications.