BREP and BRP Viewer

Open supported OpenCascade text BREP or BRP geometry as a 3D mesh. Rotate and inspect parts locally. Files without unit information use model-coordinate units; confirm actual dimensions in the original CAD application.

Viewers by extension

BREP Viewer
BRP Viewer

How to open a file

Choose a supported file in the TotalViewer workspace.
Inspect pages, layers, sheets or 3D geometry with zoom and navigation.
Check conversion warnings and compare the preview with the original application.

Supported scope and limits

Text OpenCascade BREP/BRP only: 8 MiB, 100,000 triangles, 300,000 vertices, 128 parts and 16 MiB display data. Conversion: 128 MiB memory and 25 seconds. BREP has no length-unit information: use model-coordinate units and verify actual dimensions in the original CAD application.

Detailed compatibility guide (Korean)

Free basic viewing

Open up to three files per day in the same browser without signing in. The count resets at midnight Korea time. Files are processed on your device. File, geometry and memory limits apply to both Free and Pro.

Pro advanced tools

Advanced tools such as search, personal review, measurement and comparison depend on the file format and require Pro. Pro removes the daily file-open limit. Payment does not guarantee file compatibility or accuracy.

File guides are available in your selected language. Workspace controls are currently in Korean.