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January 2, 2018:

We would like to thank all our customers for the successful cooperation and wish you a successful year 2018. 

June 26, 2017:

APSTEX is now part of the official IFC4 software certification team on behalf of BuildingSMART. We are responsible for the automated checking of IFC-files against the IFC4 scheme compliance, STEP compliance, demanded parameters, implementer agreement, geometry checks and mvdXML. The explicitly therefore developed model checking software will be integrated into the Global Testing end Documentation Server (GTDS - BuildingSMART IFC4 Software Certification). 


The IFC TOOLS PROJECT provides a framework for accessing and visualizing IFC based Building Information Models (BIM). Developers of such software can easily integrate the libraries into their products. End-users may use our viewers to visualize and check their models.

The IFC TOOLS PROJECT framework is a fork of the former OPEN IFC TOOLS project that is no longer maintained. The project has been forked in 2010 and has been fully revised within the last three years. The framework offers the possibility to develop IFC-based applications quickly in order to support complex business processes in the building industry. The provided tools are already in use by thousands of developers and users worldwide.

Getting Access: The tools are free for research and also available for prototype development. Please contact us, if you are interested to get access to the research version or if want to use it in any commercial way.

Service: On request, we can also quickly implement other Toolboxes besides the provided IFC Toolboxes based on any EXPRESS scheme, you pretend, e.g. extended schemes like IFC-BRIDGE or standardized schemes like any of the STEP Application Protocols (AP). We also provide individual consulting, further developer support, and software development on hourly, daily, monthly or on a project basis. Training courses at your location are also possible (in English or German). Please ask for a certain quote by explaining your expectations.

If you have further questions relating the framework or in general to IFC, BIM or EXPRESS/STEP feel free to contact us.


  • Full Access to IFC based BIM models
    Toolbox for Reading, Writing, Modifying, and Creating of IFC Models, Java based, Early Binding
  • Essential Geometry Routines
    Creation of Extrusional/Rotational Solids, Boolean Operations, Geometric Tests, ...
  • Interpreter for IFC Geometry
    Support of all 3D IFC 2x3 Representations
  • Graphical User Interface Components
    Visualization of IFC data, Easy Integration into Java Applications, Support of BIM Collaboration Format (BCF)
  • Java Viewer for IFC Models
    Ready for Web Integration
  • WebGL Viewer for IFC Models
    Ready for Integration into Websites
  • IFC Server Application
    Preparation of IFC files for WebGL Viewer (Coming soon)


Please feel free to contact us in case you have any question: info@ifctoolsproject.com