Manim

Manim is a powerful animation engine originally created by Grant Sanderson for his YouTube channel 3Blue1Brown. It is now maintained and developed by the Manim Community, a collective of open-source developers. The project's mission is to provide a tool for creating high-quality mathematical animations programmatically, enabling educators, students, and content creators to produce clear and engaging explanatory videos and presentations. It is not a commercial company but an active and widely used open-source project.