I\'m working on a web application that manages VRML files. I also want to let users see the uploaded files, without requiring a specific plug-in or player. X3DOM allows viewing
You can use this tool (a java jar that can be run from the command line) to convert VRML to X3D:
http://www.deem7.com/vrmlmerge/howto.php
java -jar VrmlMerge-[version].jar -convert inputfile.wrl [outputfile.x3d]
The license:
VrmlMerge is free for non-commercial use. If you somehow make money out of VrmlMerge then I'd like you to contact me to agree on some terms of use. VrmlMerge is provided "as is" and I don't take any responsibility for any damage it can make to you, your computer, files, data, wife, brain etc..