ShareCAD provides a free iframe plugin that enables viewing drawings on your website without any registration on ShareCAD. You’ll need only to add the following code to your webpage:
<iframe src="//sharecad.org/cadframe/load?url=http://www.cadsofttools.com/dwgviewer/hostel_block.dwg" scrolling="no"></iframe>
You can replace the full path to the file http://www.cadsofttools.com/dwgviewer/hostel_block.dwg by any other, for instance, the drawing can be stored on your website and you’ll thus benefit from quick and convenient viewing of DWG and other CAD files in the browser. Drawings in zip, rar and 7z archives are supported..
Here is an example at cadsofttools.com:
This plugin can be easily added to all the known CMS, such as Joomla, Drupal, Wordpress and others as html code.
The following files aresupported: AutoCAD DWG, DXF, HPGL, PLT, SPL, STEP, STP, IGES, IGS, SAT, CGM, SVG.
If you would like to use sharecad on an internal server or need any custom enhancements, please see Web CAD SDK