OWLv2 is an all-in-one online learning platform for Chemistry that delivers an ebook, multimedia learning activities, auto-graded assessments, and analytics through an accessible platform. It supports you whether teaching synchronous or asynchronous courses, during-class and outside of class, and whether you teach in-person, hybrid, or fully online. You can integrate it into your Learning Management System with automatic grade return. Developed by chemists, OWLv2 is the only system designed to elevate thinking through Mastery Learning, empowering students to work at their own pace to understand each concept and skill. It does this better than other digital products through algorithmic question randomization, high-quality question authoring, instant and question-specific feedback, and powerful analytics. The randomization of three factors: chemical, numerical, and contextual, creates thousands of unique questions and ensures that no two students get the same question, and neither does a single student taking subsequent attempts.