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Files stay in your browser for preview.BREP tool
BREP Viewer Online
Unlock BREP upload and browser preview once for $1.90. Compatible CAD geometry is processed locally for inspection and screenshots.
Sign in, then unlock this viewer once for $1.90. Files stay in your browser; VIP also includes viewer access plus advanced workflows.
Unlock large files, conversion, HD screenshots, recording, AR, and XR experiences.
About this 3D viewer
Open BREP files online to inspect boundary-representation CAD geometry. BREP can describe solids and surfaces precisely, so this browser tool tessellates compatible geometry into a displayable mesh for quick review and screenshots.
BREP files from FreeCAD, OpenCascade, and CAD workflows
Preview compatible BREP geometry in a current Windows, macOS, or Linux browser after export from FreeCAD, OpenCascade-based software, or a CAD exchange workflow. The page tessellates a display mesh locally; it is not an editor or exact BREP topology validator.
How to use this BREP viewer
- Sign in and unlock BREP Viewer once.
- Upload a compatible .brep or .brp file.
- Inspect the mesh preview before using BREP to GLB for web delivery.
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BREP viewer FAQ
How do I open a BREP file online?
Unlock BREP Viewer once and select a compatible BREP file for local tessellation and inspection.
What is a BREP file?
BREP is short for boundary representation, a CAD method for describing solids through their faces, edges, and vertices.
Can I convert BREP to GLB?
Yes. Use BREP to GLB Converter to export compatible tessellated geometry.
Can I open a BREP file online?
Yes. Unlock BREP Viewer and select a compatible .brep or .brp file for local tessellation.
Does BREP Viewer edit CAD models?
No. It previews compatible geometry and screenshots; editing requires a CAD application.
Can I view a BREP file from FreeCAD or OpenCascade?
Yes, for compatible geometry. The browser preview is useful for visual review, while FreeCAD or a CAD tool is still needed for exact topology, editing, and engineering validation.
What file extension does BREP use?
This tool accepts the compatible BREP extension shown in the upload area. Use the dedicated format viewer when a file has a related extension or an application-specific variant.
Can I use this BREP viewer on a phone?
The page can be opened on mobile browsers, but a desktop browser is usually more practical for large files and detailed orbit, zoom, and inspection work.
Do I need to create an account to preview a BREP file?
Yes. Sign in first, then unlock this BREP tool once for $1.90. VIP members can also access the viewer.