PolyTools provides some utilities to edit polylines.

CAD Monkey Lite automates the process of creating and linking multiple drawings together.

Ultimate solution for creating Layouts and Viewports.

Application that draws dynamic coordinate grids linked to closed polylines.

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

Utility for moving, aligning and copying text. Also has the ability to create new text labels.

Create diagrams via block insertion. This tool will help you save time to draw diagrams with custom blocks.

Modification Tools Package for AcDbTable cells.