How to convert STL
to BREP?

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Convert STL to BREP with CAD Exchanger products

CAD Exchanger Lab

Desktop application to view, explore and convert 3D CAD data across 30+ file formats.

Convert STL to BREP with ease and flexibility:

hide certain details and groups before conversion
add XYZ section planes
explode assemblies
choose between view, projection, and selection modes
add measurements

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CAD Exchanger SDK

Software libraries for C#, C++, Java, Javascript and Python.

Include a wide range of conversion options in your apps:

rapidly build production-ready applications with clear and structured API
import, export, visualize and analyze 3D CAD files, including BREP and STL

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Learn how to convert STL to BREP with CAD Exchanger

STL

STL (STereoLithography) is a file format native to the stereolithography CAD software. This file format is supported by many other software packages; it is widely used for rapid prototyping, 3D printing and computer-aided manufacturing. STL files describe only the surface geometry of a three-dimensional object without any representation of color, texture or other common CAD model attributes. The STL format specifies both ASCII and binary representations. Binary files are more common, since they are more compact.

BREP

A Brep file is a 3D model stored in the boundary representation (also known as B-rep). The Brep format is a part of Open CASCADE Technology (OCCT).

The Brep structure is made up of two major components:

topological components such as faces, vertices, and edges;
links between components such as surfaces, points, and curves.

It comprises three-dimensional data such as vertices, edges, wires, faces, shells, solids, compounds, edge and face triangulations, polylines on triangulations, space location, and orientation.

Convert STL
to BREP

Need to work with CAD files in numerous formats? No worries.

From STL to BREP, CAD Exchanger gets you covered.

Browse all supported formats

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Frequently Asked Questions

What are the benefits of converting STL to BREP in CAD Exchanger?

CAD Exchanger Lab is an easy-to-use 3D viewer and converter to read and write 30+ key 3D formats. It allows you to view and convert files, measure objects, build sectioning views, explode assemblies, create meshes and view PMI.

High-performance visualization, precise geometry, B-Rep modeling, turning individual assemblies and parts on and off make CAD Exchanger a useful tool for all facets of a design project.

Is there an SDK to build a STL to BREP conversion feature in my own application?

Software libraries to read, write and visualize 3D CAD files, including BREP and STL, are available in CAD Exchanger SDK, a set of C++ / C# / Java / Python libraries to develop fast and robust 3D applications.

Is there an option to batch convert STL to BREP files in CAD Exchanger?

Batch conversion feature is available in CAD Exchanger Batch (Command Line Interface), a light-weight server-based solution for batch conversions of CAD data in corporate or cloud environments.

How are CAD Exchanger products licensed?

For CAD Exchanger Lab, there are two licensing models – perpetual and subscription – which differ in access duration, either perpetual or for 12 months.

There are individual seat licenses which are per user, per seat (and are linked to a fixed MAC address), and team licenses which enable group access, either on a server or within a network domain.

Any license includes access to all formats and all features.

Subscription includes access to all releases within the subscription period. To get access to new versions under the perpetual license, annual maintenance must be purchased additionally.

For further details please refer to this blog post.

For CAD Exchanger SDK, please refer to the licensing FAQ pagethe licensing FAQ page for details.

For CAD Exchanger Batch, please refer to the licensing FAQ pagethe licensing FAQ page for details.

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How to convert STL to BREP?