Automatic polyline layout and routing for a selection of blocks and intersecting polylines, arcs, splines, and lines.

Draws automatically trimmed and filleted polylines and splines between blocks.

SDUCT allows you to create double line HVAC ductwork in Autodesk® AutoCAD®.

BackToCAD Publisher is a stand-alone converter that allows the CAD user to convert hundreds of DWG/DXF, ACIS (SAT), PRC files into 2D PDF, 3D PDF, and PRC (3D PDF or CAD Input).

AutoFEM Analysis provides the free software solution of finite element analysis for Autodesk® AutoCAD® 2013 - 2020. The system is fully integrated into AutoCAD 3D environment.

AutoFEM Analysis Tutorial allows you to learn the finite-element analysis of mechanical structures. It can be used separately or together with AutoFEM Analysis - finite-element analysis software.

A collection of automation tools and an extensive block library which simplifies the creation of drawings that conform to the PWGSC National CADD Data Standard.

Create a cross sectional noise map with multiple traffic noise sources. Interactive calculation of noise barrier height with multiple sources and receivers.

Attach PDF and all types of images (PNG, JPEG...) directly on your blueprints. DWG files are on the way ;)

This is a great library of AutoCAD® Clock symbols. There are CAD symbols of clocks including wall clocks, mantel clocks, tavern clocks, floor clocks, and longcase clocks.

The Sokoban plugin allows you to play the classic Sokoban game inside Autodesk® AutoCAD®!

Changes colors of entities in a drawing to any other color.

Finds the shortest path between two points in a road network.

These time saving tools are used to create surface developments of basic shapes.

Affine Coordinate Transformation based on common points. The app can transport single entity, whole drawing and supports paste and transform option.

CADsecurity Signature helps you to place watermarks and well-hidden signatures in your drawing as prevention or protection against unauthorized copying of a drawing's parts.

Links the Autodesk® AutoCAD® table cells or Excel worksheet cells to AutoCAD constraint parameters (includes the dynamic block parameters).