arcPaint64 is a browser-based tool for creating bitmap art, sprites, animation, and other Commodore 64 assets within real hardware constraints.

Built for drawing, editing, animation, ASM-ready import and export, and project-based workflows, arcPaint64 keeps everything in one place while staying true to how the Commodore 64 actually works. Being browser-based also makes it less dependent on any one operating system, which helps keep it practical and accessible over time.

It is drawing-first, but it also includes a multicolour bitmap converter for bringing source images into real C64 constraints. Rather than replacing manual pixel work, it gives you a practical starting point for Commodore 64 image conversion, reference-based redraws, and native bitmap editing. Overlay mode lets you line up a source image over the canvas and redraw it by hand within proper C64 rules.

Koala Painter .kla and Art Studio .art formats are supported for direct import and export.

** The official site can be found here - https://www.doussis.com/arcpaint64/