Tupitube is a design and authoring tool for digital artists
interested in 2D animation. Its source code is based on the KTooN
Some of its main features are: basic illustration tools (shapes, fill,
text), gradient tools, onion skin, brushes editor, pencil with smoothness
support and a basic object library (for SVG files and raster images).
Using its modules of animation and reproduction, 2D projects can be exported
to several formats such as OGG, MPEG, AVI, MOV and SWF. Additionally, the
option of exporting image arrays as output is available.
GPL-2.0-or-later AND GPL-3.0-or-later