Free online STEP viewer
Open and view a STEP file directly in your browser. Rotate, zoom and inspect the mesh without uploading your model.
Choose one model and its textures or BIN files together. Maximum 100 MB total.
Drag to rotate · Scroll or pinch to zoom · Right-drag to pan
What to know before opening your file
Open a STEP or STP file without installing CAD software. The browser converts CAD surfaces into triangles for display; large assemblies can take longer to load.
This is a visual preview, not a CAD editor. The displayed mesh does not expose parametric history, tolerances or measurement tools. STEP materials and face colors may not be reproduced fully.
How to view a 3D file online
- Choose your model and any companion files from your device.
- Rotate and zoom to inspect the shape. Enable wireframe to examine the mesh.
- Reset the camera or change the background for a clearer view.
Questions about the 3D viewer
Are my files uploaded?
Model files are read locally in your browser. No account or credits are required. External model resources are blocked; include companion files in your selection.
Can this viewer check whether a model is printable?
It helps you inspect geometry visually, but does not validate watertightness, wall thickness or printability. Check those in your slicer.
Create your first 3D model free
Start with an image and your free signup credits. Further generations depend on your credit balance.
Create a 3D model from an image →