Free Online 3D Model Viewer
Open STEP, IGES, STL, OBJ and GLB files in your browser. No software, no account.
How to open a 3D file online
Drop in your model
Drag the model onto the viewer, together with any files it points at.
Look at it from every angle
Drag to turn the model, scroll to zoom, right-drag to move it.
Save a picture or a mesh
Download a PNG of the view, or the model as GLB or STL.
When an online 3D viewer helps
One page for every format
Open a CAD file, a print mesh or a game asset without hunting for the right program.
File handling
STEP and IGES are converted on our server, deleted as soon as possible. STL, OBJ and GLB stay on your device.
Pass the shape on
Save any of these models as GLB or STL.
Which 3D formats does this viewer open?
STEP and STP, IGES and IGS, STL, OBJ with its MTL, and GLB or glTF.
STEP and IGES surfaces become a triangle mesh. Animated, compressed and instanced models are not supported.
Maximum STEP and IGES file size: 256 MiB.
Working with STEP files?
The STEP viewer converts STEP and STP into a browser-ready mesh.
Frequently Asked Questions
Working with site or layout drawings for an energy project?
Voltplot helps teams turn early project files, site constraints, and planning questions into clearer next steps.