openbim

The open source BIMserver platform

The official IFC Loader for Three.js.

A .NET library to work with data in the IFC format. This is the core component of the Xbim Toolkit

Built with xeokit SDK. IFC, BIM and Point Cloud 3D Viewer as a package. Enables AEC & GIS applications with double precision global coordinates.

The latest version of the BIM Surfer WebGL viewer for IFC

Sample files of various formats and schema versions. Used for certification purposes.

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

Development of the next generation of Industry Foundation Classes

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.

Open, self-hosted, IFC-native AEC platform: web BIM viewer + modeling, a ~100-module GC portal (RFIs, pay apps, CPM, construction accounting — double-entry GL/WIP → QuickBooks, e-sign), AI assist, IDS authoring, estimating + embodied carbon, a development proforma, and operate/dispose (CMMS, facility condition, rent roll, waterfall).

Clean-room reader for Autodesk Revit files (.rvt/.rfa/.rte/.rft) without Revit: metadata and schema of 2016-2026 files, and typed elements with measured geometry from Revit 2023 to 2025 projects (2015 to 2022, 2026 and 2027 experimental), exported as IFC4, glTF and plan SVG. Rust, Python, WebAssembly. Apache-2.0.

BIMData Platform is a web application to manage your project in the BIM ecosystem

A curated list of open-source AECO (Architecture, Engineering, Construction, Operations) tools: BIM, IFC, CAD, Revit, simulation, structural analysis, parametric design, digital twins, GIS, cost estimation and AI.

Advanced BIM Course @ DTU Construct. Links are for github pages and do not work on github.com.

Fossil Carbon Emitted in Production BIMjson (Revit, IFC projects)

Language Server Protocol implementation for IFC STEP files, providing schema-aware diagnostics, navigation, hover, completion, and editor assistance.

open-source data format that replaces BIM Execution Plans documents with executable structured data.

A tool for creating IDS specification using Excel.

Draw, dimension and sheet IFC models in the browser. Plans, sections, annotations, PDF and DXF. Open source, MPL-2.0.

Portable AI agent skills, subagents, and plugins for architecture/AEC workflows across Codex, Claude Code, Gemini CLI, and other compatible agents.