A curated list of open source projects for the Architecture, Engineering, and Construction (AEC) industry. A live frontend demo can be found HERE
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This directory is licensed under the MIT License - see the LICENSE file for details.
This project is inspired by the extra-awesome-dotnet project.
| Project | Description | Language | Stars | Last Updated | License |
|---|---|---|---|---|---|
| OCCT | Open CASCADE Technology (OCCT) is an open-source software development platform for 3D CAD, CAM, CAE. | C++ | 2140 | Jan 30, 2026 | LGPL-2.1 |
| compas | Main library of the COMPAS framework and CAD integrations for Rhino/GH and Blender. | Python | 351 | Jan 26, 2026 | MIT |
| three.js | JavaScript 3D Library. | JavaScript | 110606 | Jan 30, 2026 | MIT |
| voxelization_toolkit | Voxelization Toolkit for (IFC) Building Models | C++ | 88 | Jan 19, 2026 | MIT |
| BIMserver | The open source BIMserver platform | Java | 1683 | Jan 28, 2026 | AGPL-3.0 |
| ladybug | 🐞 Core ladybug library for weather data analysis and visualization | Python | 221 | Jan 17, 2026 | AGPL-3.0 |
| QGIS | QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS) | C++ | 13209 | Jan 30, 2026 | GPL-2.0 |
| rhino3dm | Libraries based on OpenNURBS with a RhinoCommon style | C# | 704 | Jan 25, 2026 | MIT |
| lcax | LCAx is a open, verifiable, machine and human-readable LCA exchange format | Rust | 72 | Jan 23, 2026 | Apache-2.0 |
| calc | Calc helps architects quickly estimate the environmental impact of their early design. | C# | 18 | Nov 26, 2025 | MIT |
| IfcOpenShell | Open source IFC library and geometry engine | C++ | 2351 | Jan 29, 2026 | LGPL-3.0 |
| xeokit-sdk | 3D BIM IFC Viewer SDK for AEC engineering applications. Open Source JavaScript Toolkit based on pure WebGL for top performance, real-world coordinates and full double precision | HTML | 867 | Jan 29, 2026 | AGPL-3.0 |
| compas_wood | Project for Timber Joint Generation. Documentation: | Python | 46 | Jan 7, 2026 | MIT |
| honeybee-energy | 🐝 🔥 Honeybee extension for energy simulation | Python | 33 | Jan 27, 2026 | AGPL-3.0 |
| dragonfly-core | 🐉 dragonfly core library | Python | 18 | Jan 27, 2026 | AGPL-3.0 |
| honeybee-radiance | 🐝 ⚡️ Radiance extension for Honeybee | Python | 17 | Jan 29, 2026 | AGPL-3.0 |
| geospiza | Geospiza is a project focusing on evolutionary design in grasshopper | C# | 7 | Jan 26, 2026 | MIT |
| BetterCorrectFast | Simplified BIM Collaboration Format (BCF) generation for project leaders and managers | Python | 13 | Jan 15, 2026 | MIT |
| sPrint | A Chrome extension that allows batch-print PDFs from BIM360 and ACC platforms. | TypeScript | 32 | Dec 12, 2025 | MIT |
| IfcLCA | Open Source Life Cycle Assessment for Built Environment with Industry Foundation Classes | TypeScript | 34 | Jan 12, 2026 | AGPL-3.0 |
| ifc-flow | A visual node-based tool for working with Industry Foundation Classes (IFC) files | TypeScript | 70 | Jan 27, 2026 | AGPL-3.0 |
| ifc-classifier | Web-based tool to add IFC classification references (Uniclass, eBKP-H etc.) with 3D visualization using Three.js, web-ifc, and IfcOpenShell. | TypeScript | 22 | Jan 27, 2026 | AGPL-3.0 |
| D2P-Components | D2P Components streamline parametric modeling in Grasshopper, helping you manage complex data trees, reduce recomputations, and maintain a structured, scalable workflow from concept to fabrication. | C# | 19 | Oct 11, 2025 | MIT |
| ara3d-sdk | 📚 Various C# libraries for efficient data driven applications | C# | 20 | Jan 27, 2026 | MIT |
| ara3d-webgl | A Three.JS based WebGL viewer for AEC data. | TypeScript | 37 | Jan 29, 2026 | MIT |
| gladis | A web app and search engine for Environmental Product Declarations (EPDs). | N/A | 0 | Jan 30, 2026 | Unknown |
| honey-ifc | Stylish desktop app for exploring and exporting IFC data — fast, fun, and frustration-free. | Python | 6 | Dec 4, 2025 | GPL-3.0 |
| bowerbird | Scripted C# Plug-in Framework for Revit | C# | 58 | Jan 26, 2026 | MIT |
| EngineeringPaper.xyz | EngineeringPaper.xyz is a web app that makes it easy to create, save, and share engineering calculations. | TypeScript | 203 | Jan 29, 2026 | MIT |
| bim-open-schema | Representing BIM Data as Parquet | C# | 35 | Jan 26, 2026 | MIT |
| awatif | The First Web-based Parametric Structural Engineering Platform | TypeScript | 121 | Jan 28, 2026 | MIT |
| Taxonomy | A set of interfaces describing a taxonomy for structural engineering objects | C# | 4 | Jan 19, 2026 | MIT |
| engine_components | No description provided | TypeScript | 586 | Jan 27, 2026 | MIT |
| SOM-Toolkit | Python | 7 | Jan 27, 2026 | MIT | |
| IfcBorehole | CLI and GUI for creating IfcBoreholes from Excel or GIS files or a pandas dataframe | Python | 1 | Oct 2, 2025 | MIT |
| RevitAddInManager | Revit AddinManager update .NET assemblies without restart Revit for developer. | C# | 422 | Jan 29, 2026 | MIT |
| Hywe | Space layout planning in a browser | F# | 7 | Jan 29, 2026 | MIT |
| AppBuilderSdk | Single page application which serves as the frontend of ShapeDiver App Builder | TypeScript | 9 | Jan 29, 2026 | MIT |
| ifc-ids-mcp | An MCP to create IDS files deterministically using IfcOpenShell's IfcTester | Python | 21 | Jan 29, 2026 | MIT |
| p5.js | p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. Looking for p5.js 2.0? http://beta.p5js.org | JavaScript | 23378 | Jan 29, 2026 | LGPL-2.1 |
| enji-react-svg-drawings | This repository demonstrates how React can be used to create SVG-based drawings for construction and manufacturing applications. | TypeScript | 13 | Dec 17, 2025 | Unknown |
| Speckle2Graph | Speckle2Graph is a Python library that builds pipelines from Speckle to a graph database in a few lines of code | Python | 13 | Jan 29, 2026 | Apache-2.0 |
| Calcpad | Free and open source software for mathematical and engineering calculations. | HTML | 627 | Jan 28, 2026 | MIT |