Zen UV is a comprehensive toolkit for UV mapping and unwrapping in Blender. It introduces custom gizmos for manipulating UV islands directly in the 3D viewport and UV editor, along with specialized algorithms for relaxing organic shapes and straightening quad-based meshes. The toolset includes systems for managing trimsheets, hotspot mapping, and UDIM tiles.

The add-on provides advanced controls for texel density, seam marking, and island stacking. It also features visual indicators for displaying stretched, overlapping, flipped, or excluded UVs, as well as a sticky panel for quick access to the UV Editor and custom checker textures.