Pencil Alternatives for Mac OS X

Synfig Studio is a powerful, free, and open-source 2D animation software designed for creating high-quality, professional-looking vector animations. It offers a timeline-based workflow, extensive control over layers and parameters, and support for various animation techniques, making it a robust tool for artists and animators.

Karbon is a free and open-source vector graphics editor, part of the Calligra Suite. It enables artists and designers to create scalable vector artwork, illustrations, and graphics, supporting various features like layers, vector tracing, and export options.

OpenToonz is a powerful, open-source 2D animation software widely used in professional studio production and by independent artists alike. It offers a comprehensive suite of tools for vector and raster drawing, frame-by-frame animation, bone rigging, complex effects, and scanned drawing cleanup.

Moho (formerly Anime Studio) is a powerful vector-based 2D animation software favored by both beginners and professionals. It specializes in character rigging, cut-out animation, and traditional frame-by-frame workflows, offering a comprehensive suite of tools for creating engaging 2D animations.

Tupi is a free and open-source 2D animation software designed with beginners and enthusiasts in mind. It provides a user-friendly environment for creating traditional frame-by-frame animations and offers vector-based drawing tools.

Pencil2D is a free and open-source 2D animation software for Windows, macOS, and Linux. It offers a straightforward platform for creating traditional hand-drawn animations using vector and raster graphics.