Face Cutter is a modeling addon that simplifies cutting operations on ngon faces in Edit Mode. It allows users to create straight cuts across selected faces by defining snapping points, setting precise angles, or aligning to existing boundary edges. The tool functions similarly to Blender's loop cut but is designed to support non-quad geometry.

It features multiple cutting modes, including full-mesh knife projection to cut through an entire object and a structural separation mode that breaks the mesh into disconnected solid parts. Users can mirror cuts symmetrically, snap to 45-degree increments for corners, or enter a specialized edit mode to draw diagonal lines directly between specific edge points.