krita

Krita is a professional digital painting application designed for concept artists, illustrators, and texture and matte painters. It focuses on creative workflows rather than photo editing, offering a specialized toolset for original artwork creation.

• 100+ brush presets with customizable engines for oil, watercolor, pencil, ink, and more
• Full pen tablet support with pressure and tilt sensitivity for natural drawing
• Frame-by-frame animation with onion skinning for cel-style animation workflows
• Non-destructive editing through filter masks, transform masks, and layer effects
• Python scripting for custom plugins and workflow automation
• HDR support with OpenEXR editing and color management

Built with C++ and Qt, Krita runs on Windows, macOS, and Linux. As part of the KDE project, it benefits from long-term community-driven development. Completely free for both personal and commercial use.