STP Viewer
Open and inspect .stp files in your browser. Free, no upload, no sign-up.
Open and inspect .stp / .step files in your browser. Rotate, zoom, switch to wireframe and read exact dimensions. Nothing is uploaded.
How to view a STP file online
- 1Drop the file
Drag your .stp file into the box or click to pick it.
- 2Inspect
Orbit with the left mouse button, pan with the right, zoom with the wheel. Toggle wireframe to see the triangles.
- 3Read the numbers
Dimensions, volume and mesh health are shown under the viewport.
About the STP format
.stp is simply the three-letter extension for a STEP file (ISO 10303-21). SolidWorks, Inventor and many Windows CAD tools default to .stp while others use .step; the content is identical. It stores exact B-rep solids with units, not triangles.
Commonly used by: SolidWorks, Inventor, Creo, NX, supplier CAD downloads
Tessellated in the browser with OpenCascade. Mesh density is adjustable; the first load downloads a 7 MB engine.