OBJ Viewer is a simple tool to view files in the
.OBJ format on Mac OS X.
OBJ Viewer is currently incomplete, and does not support some commonly-used (and not-so-commonly-used) features of the
.OBJ file format:
sdirectives in the input file, although it will correctly process
OBJ Viewer is available for download here. It should run on Mac OS X 10.6 or later (but no guarantees).
The sources are available here.