Flux Player - Supports VRML97 plus Amendment 1, the Full X3D profile and MPEG-4/BIFS. From Tony Parisi, one of the inventors of VRML. Available for Windows. - http://www.mediamachines.com/
BS Contact - The latest release of the player previously known as Blaxxun Contact. Supports VRML97 and X3D Core, plus extensions for multi-user avatar worlds, NURBS, anti-aliasing, BSP trees, dynamic LOD for large worlds, and the realtime shaders draft specification. - http://www.bitmanagement.de/download/playerdownload.en.html#BS_Contact_VRML/X3D
blaxxun Contact - Supports VRML97 and the Core profile of X3D, plus extensions including multi-user avatar worlds, NURBS, BSP trees and anti-aliasing. Available for Windows. - http://www.blaxxun.com/home/index.php?Itemid=85
SimVRML - An Open Source browser (GNU GPL/LGPL). Supports VRML97. Available for Mac OS X. - http://sourceforge.net/projects/simvrml/
Cosmo Player for Windows and Mac - Supports VRML97. This site hosts the Windows and Mac OS classic versions. - http://ovrt.nist.gov/cosmo/
Octaga - Supports VRML97 and the X3D Full Profile. Available for Windows and Linux. - http://www.octaga.com/download_octaga.html
FreeWRL - An Open Source browser (GNU LGPL). Supports VRML97 including scripting and EAI, and X3D. Available for Linux, MacOS X, IRIX and other Unix-style platforms. - http://freewrl.sourceforge.net/
OpenVRML - An Open Source browser (GNU LGPL). Includes libraries you can use to add VRML support to an application, and Lookat, a simple stand-alone VRML browser. Binaries and source are available for Windows, IRIX, Linux and MacOS. - http://openvrml.org/download
VRML Browser and Plugin Detector (X3D Too) - The VRML Plugin and Browser Detector determines which VRML or X3D plugin is configured to work with your web browser. - http://cic.nist.gov/vrml/vbdetect.html
Cosmo Player for SGI IRIX - Supports VRML97. This site hosts the SGI IRIX version. - http://www.sgi.com/products/evaluation/6.5_cosmoplayer_2.1.5/
Cortona - Supports VRML97 plus the Amendment 1 extensions such as Nurbs (curved surfaces) and GeoVRML. Available for Windows and Mac (Classic and OS X). - http://www.parallelgraphics.com/products/cortona/