Hi, wanted to share this little gem we put together: https://beta.makerbrane.com/tools/ldraw-viewer/
It opens .ldr, .mpd, .dat into an online 3D viewer, you can then change the background color and angle and export snapshots.
It also converts the file into MakerBrane format, and opens it in another viewer with a different rendering style.
It can also open in the 3D MakerSpace which is like LDD or mecabricks but more of a Universal Digital Builder because it has parts from other systems as well - but it you can't edit everything because not all the LEGO parts have been fully referenced yet for auto-snapping yet.
Promising though, right?
If you try it, post a screenshot here and let me know if there are any features we should add.