Blender is a powerful and free software for creating 3D and 2D animations. One of its features is the grease pencil tool, which allows you to draw and animate directly in the 3D viewport.

The Grease Pencil provides 2d animation tools within Blender’s free and open-source full-3d pipeline. For a clearer idea of what this means, take a look at the end credits of Hero which shows in ...