Pencil2D is a free and open-source animation tool, which makes it ideal for all types of users, especially creatives who want to create basic animations without the overhead of software costs.

The Grease Pencil provides 2d animation tools within Blender's free and open-source full-3d pipeline.

Animation software maker Blender is showing off its upcoming Grease Pencil 2.0 tools through a new demo called Hero. The Grease Pencil provides 2d animation tools within Blender’s free and open ...

Pencil is a very realistic sketching program and good 2D animation tool for the cost (free).