Welcome to buildingSMART International!

About buildingSMART International

buildingSMART International (bSI) is a non-profit organization leading the global development and adoption of digital open standards in the construction and infrastructure industries. Our mission is to improve the built environment through collaborative digital practices, promoting interoperability, and encouraging efficient and transparent data exchange across the entire lifecycle of buildings and infrastructure.

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IDS IDS Public

Computer interpretable (XML) standard to define Information Delivery Specifications for BIM (mainly used for IFC)

C# 333 93
IFC4.x-development IFC4.x-development Public

Repository to collect updates to the IFC4.x specification

Python 246 126
IFC5-development IFC5-development Public

Development of the next generation of Industry Foundation Classes

HTML 240 86
bSDD bSDD Public

The buildingSMART Data Dictionary repository, where we publish the documentation, examples and more. We don't publish here the data, the source code of the bSDD service or the front end of the webs…

C# 198 47
BCF-XML BCF-XML Public

XML specification for BIM Collaboration Format

PowerShell 263 92
BCF-API BCF-API Public

Web service specification for BIM Collaboration Format

241 68

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Showing 10 of 24 repositories

validate Public
buildingSMART IFC Validation Service

buildingSMART/validate's past year of commit activity

Python 73 MIT 22 9 8 Updated Nov 10, 2026
Standards-builds Public
Repository of all openBIM standards, both official and in developement, used to produce documentation pages.

buildingSMART/Standards-builds's past year of commit activity

HTML 4 3 1 1 Updated Nov 9, 2026
IFC4.x-development Public
Repository to collect updates to the IFC4.x specification

buildingSMART/IFC4.x-development's past year of commit activity

Python 246 126 505 52 Updated Nov 4, 2026
ifc-gherkin-rules Public

buildingSMART/ifc-gherkin-rules's past year of commit activity

Python 24 MIT 26 41 15 Updated Nov 2, 2026
bSDD Public
The buildingSMART Data Dictionary repository, where we publish the documentation, examples and more. We don't publish here the data, the source code of the bSDD service or the front end of the website.

buildingSMART/bSDD's past year of commit activity

C# 198 MIT 47 18 0 Updated Oct 21, 2026
IFC4.x-specification-models Public
Models used in the official documentation of IFC

buildingSMART/IFC4.x-specification-models's past year of commit activity

Python 15 10 3 0 Updated Oct 14, 2026
ifc-validation-data-model Public

buildingSMART/ifc-validation-data-model's past year of commit activity

Python 9 MIT 2 2 0 Updated Oct 5, 2026
IDS Public
Computer interpretable (XML) standard to define Information Delivery Specifications for BIM (mainly used for IFC)

buildingSMART/IDS's past year of commit activity

C# 333 93 73 9 Updated Sep 25, 2026
documents-API Public
part of the openCDE portfolio

buildingSMART/documents-API's past year of commit activity

33 4 0 2 Updated Sep 10, 2026
IFC5-development Public
Development of the next generation of Industry Foundation Classes

buildingSMART/IFC5-development's past year of commit activity

HTML 240 86 30 19 Updated Sep 8, 2026

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