A simple 2D maze generation app. It can also be used to generate random hatch patterns.

A recursive Hilbert fractal space-filling pseudo curve generator in 2D/3D

BlackBox Right Click Hatch for Autodesk® AutoCAD® allows the user to quickly hatch one or more selected, closed Curve entities, from the context (right click) menu.

Quickly trace the boundary of selected objects. From selected objects(Line, Arc, Polyline), the app will trace and find out Closed Polyline in a second.

Copy and Paste the group(s) between two drawings. Normally, when copying object(s) in group to another drawing, the group information will be removed. This tool will help you in this situation

A native Autodesk® AutoCAD® Lindenmayer System (L-System) generator/processor. Draw complex shapes/fractals through the use of iteration.

Exporting from Autodesk® AutoCAD® to Excel is simple than ever.

Poly-U includes 67 kinds of mathematical formulas, gradient curves between curves, influence curve, quadrilateral mapping, curve optimization, associative curve, inner and outer contours, etc.

This plugin helps managing groups of level indicators, often used in architecture and building design.

Automatically assign new entities to specific layers based on their type. Analog to AutoCAD Mechanical functionality, but works with every AutoCAD flavor and with six different entity categories.

The ArchBlocks Hatch Patterns library for AutoCAD® gives you 376 hatch patterns for architectural, interior, geological, mechanical, and landscape designers. Compatible with ALL versions of AutoCAD.

Extended Offset - Multiple Offset with ability to offset on left/right and both sides. You can set an unlimited number of offset values.

Creates direction pattern for steep slopes. The Pro version has some extra features compared to the free version.