This research is a type of development research using the 4D model (Four D Models). Developing a tool in studying and delivering physics material for teachers and students is the aim of this study. The media in question is physics learning media assisted by Adobe Animate on the harmonious vibration material on the spring. Furthermore, it is hoped that Adobe Animate assisted physics learning media can help teachers and students in delivering and studying physics material through online learning. The trial subjects of this study were students of class X MIA 4 SMA N 1 Banguntapan Bantul which consisted of 34 students. The result of this research is that a learning media assisted by Adobe Animate has been developed on harmonious vibration material as a tool for teachers and students in online learning. Physics learning media assisted by Adobe Animate is suitable for use in online physics learning with the "Very Appropriate" category according to media and material experts, as well as according to physics learning practitioners. Physics learning media assisted by Adobe Animate is also very interesting to use during the physics learning process online in the "Very Interesting" category according to the students.