IfcPlusPlus is an open source C++ class model, as well as a reader and writer for IFC files in STEP format. Features: Easy and efficient memory management using smart pointers. Parallel reader for very fast parsing on multi-core CPU's. Additionally, there's a simple IFC viewer application, using Qt and OpenSceneGraph. It can be used as starting …
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ifcquery Merge pull request #134 from PanicSheep/clang_modernization
Modernizes code with the help of clang power tools, take 2.
Latest commit 559041c Jan 14, 2019




IFC++ is an open source IFC implementation for C++. It was originally developed at the Bauhaus University Weimar.


The project is published under the MIT license, which means that you can use it for any purpose, personal or commercial. There is no obligation to publish your source code.

Details and download of executable

Additional information as well as download links to the viewer application is on this project website: http://www.ifcquery.com

How to build the library and example application on Windows and Linux


Screenshot of steel frame model in the example viewer

980 000 entities loaded, 8000 with geometric representation. Loaded in < 4 sec. on a standard PC, including geometry. Steel frame model