Free OBJ File Viewer Online
Open an .obj in your browser, from a 3D scan, a modeling package, or a game asset library, and inspect it properly: rotate, measure, section. Free, no install, no account needed.
Drag your .obj onto the viewer.
Same full toolset on phone, tablet, and desktop.
From scan or screen to something you can measure
OBJ files come from everywhere: 3D scanners, sculpting and modeling tools, game pipelines, marketplace downloads. Whatever produced yours, this viewer opens the mesh so you can turn it over, zoom into the details, slice a section through it, and take real measurements in inches or millimeters. That last part matters more than people expect with OBJ, because meshes travel without reliable units and the fastest way to catch a scale problem is to measure a feature you know.
Share the mesh with your notes on it
Save the model to a free account, pin comments to the exact spots you mean, attach reference images or the source files, and send one link. The recipient opens everything in their browser, staged the way you left it, and pays nothing. Downloads of the original are available whenever you allow them.
Free, no strings
STEPFILE.com is built and owned by Texas Metal Works, a Texas fabrication shop, and it’s free as in beer. Paid plans exist to keep the service self-supporting, nothing more. The story is here.
Other formats: 3D model viewer | STL | IGES | DXF | glTF