Spatial p5 is a beginner-friendly toolkit for rapid prototyping and sketching in immersive environments. By integrating the capabilities of p5.xr—a library that introduces WebXR features to the popular p5.js platform—Spatial p5 provides intuitive tools and features that empower artists and designers to test ideas in an interactive, three-dimensional space. With headsets, people can code directly within this immersive space.