AutoSolids, Inc.
2
Freeware
AS Mechanical is a parametric 3D hardware library for AutoCAD(2008 and prior).
ArchVision, Inc.
3
Freeware
RPC Plug-in for Autocad is a smart and very useful plug-in for Autodesk AutoCAD.
Autodesk
333
Update
Fix ECW Raster file issue on AutoCAD Map 3D & Infrastructure Administrator 2017.
ERDAS
43
Freeware
The ECW JPEG 2000 plug-in allows you to view high quality aerial photos.
7
Environmental Systems Research Institute, Inc.
876
Demo
ArcGIS for AutoCAD is a free, downloadable plug-in application for AutoCAD.
CodeDog Technologies
6
Demo
Obj File Import for AutoCAD is a Wavefront file import plug-in for AutoCAD.
AutoLISP just simple
21
Commercial
Autodesk AutoCAD plug-in for converting AutoCAD objects to Excel objects.
kubit GmbH
1
Freeware
TachyCAD works as a direct plug-in to the latest versions of AutoCAD.