Shaderballs is a free Chrome add-on designed to improve the user experience for shader enthusiasts using shadertoy.com. This tool allows users to visualize their fragment shaders by applying textures to spheres, making it easier to draft equirectangular and spherical shaders. The integration is seamless, providing a new button beneath existing shaders on shadertoy.com.

Once activated, the Shaderballs plugin opens a small in-page modal that displays the selected shader wrapped around a sphere. This feature enhances the understanding of how shaders interact with three-dimensional surfaces, providing a more intuitive way to experiment and refine shader designs. The tool is particularly useful for developers and artists looking to create visually compelling graphics.