: Features a specialized timeline with frames and layers, onion skinning for seeing previous/next frames, and real-time animation previews.
Aseprite's "free" availability depends on your technical comfort level: Faq - Aseprite Aseprite v1.2.21 Free Download
As part of the v1.2 series, this version includes the software's signature professional tools: : Features a specialized timeline with frames and
: Corrected an issue where the Insert Text function ignored transparent colors in indexed mode. onion skinning for seeing previous/next frames