Free, open-source alternatives to Moho

Moho, once sold as Anime Studio, is 2D animation software centred on rigging: you draw a character with vector tools, attach a skeleton of bones, and animate by posing it on a timeline while the software fills in the frames between. The open-source apps below share that core job of building 2D animation from keyframed artwork.

Synfig Studio works most like Moho, with vector layers that interpolate between keyframes and a skeleton system for rigging cut-out characters. OpenToonz takes a broader production approach, combining drawing tools, an exposure sheet and compositing effects, and suits mixed hand-drawn and cut-out work.