In the wake of technological advancements and the phasing out of Adobe Flash, the need to convert Flash-based Computer-Based Training (CBT) modules into HTML5 courses has become paramount. This conversion process involves a meticulous transition from the outdated Flash format to the more versatile, secure, and mobile-friendly HTML5. By leveraging modern authoring tools and expertise, this transformation ensures the seamless functionality and accessibility of existing CBT modules across various devices and platforms. This shift not only future-proofs the content but also enhances user experience, allowing for interactive elements, multimedia integration, and compliance with evolving web standards. The Flash to HTML5 conversion represents a strategic move towards modernizing eLearning content, ensuring its longevity and adaptability in the ever-evolving digital landscape.