DWG Version Conversion

DGN to DWG Converter Pro is an easy-to-use and efficient converter which batch converts DGN files (V7 and V8) into AutoCAD DWG or DXF. There is no need to install AutoCAD or Miscrostation, you will get the right CAD drawing as you want.
DWG to DWF Converter, a batch converter converts DWG/DXF to DWF without need of AutoCAD. It supports AutoCAD version R9 to AutoCAD 2014.
DWG to DWF Converter, featured with converting DWF file into AutoCAD. This stand-alone version software does not require AutoCAD to run. Batch convert is ready. Supports AutoCAD R14 thru AutoCAD 2014.
A batch bi-directional DWG and DXF converter and File version converter without AutoCAD. You can also add password for your DWG drawings.

DWG Viewer Software

DWGSee, a lite and fast dwg/dxf/dwf viewer. Browse, view, mesure, markup and print DWG/DXF/DWF files. Supports AutoCAD 2014 drawing format. Works with terminal server.

Convert other formats into DWG

PDF to DWG Converter Stand-Alone let you convert PDF to DWG and pdf to DXF freely and efficiently and let you choose to generate AutoCAD drawing versions from 2.5 to 2009. Support converting both vector and raster into vectoized ediatble drawings.
VectorNow Raster to Vector converter, converts image files to vector DWG/DXF drawings with editable lines, such as scanned drawings and maps in formats of BMP, JPG (JPEG), GIF, TIF (TIFF), PNG, etc. No AutoCAD requested.

Convert DWG to other formats

DWG to PDF Converter featured with batch converting DWG to PDF, DXF to PDF and DWF to PDF without need of AutoCAD. Supports AutoCAD 2014 now. Very ease to use.
FlashDWG is a dwg dxf to flash converter, it is the best way to share and publish AutoCAD DWG DXF files on the web.
DWG to Image Converter batch converts DWG, DXF and DWF to JPG(JPEG), TIFF(TIF), GIF, PNG, BMP, WMF and EMF without need of AutoCAD. Supports AutoCAD 2014 now.

AutoCAD Plug-in Program

DWF to DWG Importer is an AutoCAD Addin allows you to import DWF file into AutoCAD. It supports AutoCAD full version R14 thru 2012.
FlashDWG is a dwg dxf to flash converter, it is the best way to share and publish AutoCAD DWG DXF files on the web.
PDFIn PDF to DWG Importer, an AutoCAD Addin which allows you to import PDF files into DWG and DXF files quickly and easily with high output conversion quality. It supports AutoCAD from R14 to the latest 2010 cad drawing formats.

Other DWG

With eTransmit, you can securely send complete dwg files to anyone via email. You can easily compress and transmit dwg files -include all associated files and xrefs-as a single information set to anyone with email, this means that all the des
A powerful and fast dwg tools, Protecting drawing file, Keep others from modifying/copying your design.DWGLock is a stand-alone application, no AutoCAD required; Supports AutoCAD R2.9 thru 2012 drawings.
Attribute Extractor allows you to batch extract attribute data from AutoCAD attribute blocks without need of AutoCAD. It supports most DWG formats including AutoCAD Release 9 thru the present AutoCAD 2014.

ActiveX Controls for developers

DWG2DWF-X is an Active Control(COM) for converting DWG to DWF. It supports AutoCAD version R9 to latest version AutoCAD 2014, and supports DWF6.0.
An ActiveX Control lets you convert drawings between DXF and DWG.
DWG2ImageX is an ActiveX control let you convert DWG, DXF and DWF files into GIF, TIFF, TIF, JPEG, JPG, BMP, PNG directly, without need of AutoCAD. Support AutoCAD R9 to AutoCAD 2014 foramt.
Users upload or drop dwg files into a watched folder, the drawing will be convert into pdf or images automatically at once. Users can set up different folders in different output policy to specify output file type, and other settings.
DWG2PDF-X , an ActiveX control allows you convert dwg to pdf, dxf and dwf to pdf directly, AutoCAD NOT required. A standard ActiveX control, works with all of the great languages, such as: VB, VC++, .Net, Java...
Just view, zoom, pan, rotate, change background color, turn on/off layers, print with this littlie viewer. It is that easy and you are managing all your CAD drawings without AutoCAD.

Freeware

Now you can google your dwg or dxf files within your computer with this free DWG Indexer. A thumbnail is also created for each file in the search list.