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Welcome to the home of The xBIM Toolkit.

Written with "open-standards" in mind,
xBIM (eXtensible Building Information Modelling) is a free, open-source, software development toolkit that allows developers to create bespoke BIM middleware for IFC-based applications.  IFC (Industry Foundation Classes) is an open, neutral data format developed by BuildingSmart UK (an alliance of organisations within the construction and facilities management industries dedicated to improving processes within the industry through defining the use and sharing of information). 

Developers can use xBIM to read, write, and update an IFC file in a few lines of codes.  xBIM is a .NET toolkit, so developers can build everything from simple command-line applications, to extensions for Windows applications and Web services.  An example of this would be: an “Add-In” for commercial BIM tools such as Autodesk Revit.

xBIM is the result of Northumbria University’s and the BIM Academy’s on-going commitment to OpenBIM initiatives.  It was instigated by Professor Steve Lockley and is supported by a team of BIM software specialists.

We would like to encourage anyone who is interested to participate in the xBIM project - to join in, learn about xBIM, share it,  contribute to the codes, or write programs (middleware) that uses the xBIM toolkit. 

What is xBIM?
If you would like to create bespoke BIM applications, or extensions to existing BIM software, xBIM provides an open-source platform for the creation of multiple BIM tools.  Find out more here.
I want to download xBIM

Download the xBIM Tookit for free.

Where do I start?
More information on how to get started with the xBIM Toolkit can be found here.
Developers wanted
Help us make xBIM even better!  If you would like to contribute to the source codes, please contact us.
Spread the word
If you like xBIM, and would like to write about it on your blog, website or Facebook, please do so! Click here to download a copy of xBIM's summary sheet.

BIM Education in UK


We are also part of The OpenBIM Programme: a UK-based, open and non-product specific group initiated by BuildingSmart, focused on promoting open communication protocols as an integral part of BIM process and providing industry with education and support on the deployment of Open BIM process.
Case Studies
Find out more about how xBIM is used to support the creation of BIM tools used in various projects, from small-scale applications to multi-million large scale Government-funded projects.  Read more here.

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