The xBIM (eXtensible Building Information Modelling) toolkit is a free software development tool that allows users to read, create and view building information models (BIM) in the Industry Foundation Classes (IFC) format. It can be used to create BIM middleware for IFC-based applications.
IFC is a neutral, non-proprietary data format used to describe, exchange and share information that was developed by BuildingSmart UK.
xBIM was instigated by Professor Steve Lockley at the University of Northumbria and is supported by a team of BIM specialists. It is open source, meaning that the source codes are available for anyone to use and develop.
xBIM is written in C# and C++ and uses 'extension methods' making it relatively straight forward to add new methods into an existing class. Developers can write simple command-line applications, or they can create extensions for Windows applications and web services.
The open-source xBIM Xplorer allows users to:
- Open and view IFC files.
- Navigate building information models.
- Show and hide parts of building information models.
- View a building information model in 360° degrees.
- Export IFC files as .ifcXML, ifcZIP files.
 Related articles on Designing Buildings Wiki
- Building information modelling.
- BIM articles.
- BIM resources.
- BIM glossary of terms.
- Industry Foundation Classes.
 External references
Featured articles and news
Do you know all the various types of defects in brickwork?
US museum reveals plans for an installation made entirely of paper tubes.
Review of a book looking at how contemporary architecture found its expression within neoliberal capitalism.
The Great Mosque of Djenne, the largest mud-brick building in the world.
Amanda Clack, RICS President offers recommendations to government on Brexit and the construction skills shortage.
Tired of the commute? This architecture firm believes the best solution is to take cars underground.
Why do so many women leave engineering? Probably not for the reason you’re thinking.
For over 30 years David Trench was one of the UK's leading project managers. Read about his career through some of his most famous projects.
Leading institutes join forces calling for property flood resilience measures to help householders avoid repeat flooding.
CITB publish new report calling for the development of new skills standards for offsite construction.
Residents of neighbouring building go to High Court claiming viewing platform infringes their human rights.
If only Easter eggs came as large as this one in a Japanese bird sanctuary.