OpenToonz

OpenToonz is a high-end 2D animation software based on the proprietary 'Toonz' software developed by Digital Video S.p.A. in Italy, later customized by Studio Ghibli for legendary productions like Spirited Away and Princess Mononoke. Released as an open-source project by Dwango in 2016, it has evolved into a powerhouse for both traditional paper-based and digital-first animation. Its architecture is characterized by a unique Xsheet (exposure sheet) interface, a node-based Schematic view for visual effects, and the GTS scanning tool for professional paper-to-digital workflows. In the 2026 market, OpenToonz maintains its position as the premier free alternative to Harmony and TVPaint, increasingly integrating AI-driven SDKs for automated colorization and style transfer. Its technical depth allows for complex layering, mesh-based 'Plastic' deformations, and seamless vector-to-raster conversions. The software supports a wide range of industry-standard formats and provides a robust plugin environment for deep learning-based image processing, making it a critical tool for independent studios and high-end feature film production houses alike.