Graphite is an in-development raster and vector graphics package that's free and open source. It is powered by a node graph compositing engine that fuses layers with nodes, providing a fully nondestructive editing experience. https://graphite.rs/
OSAFE Workbench (FreeCAD addon) https://github.com/ebrahimraeyat/OSAFE
The OSAFE workbench by Ebrahim Raeyat. This FreeCAD Addon is a collection of civil engineering tools, originally designed as a workaround for issues with CSI SAFE. The addon is available via the regular Addon Manager.
GPL-V3
Just reviewing this thread regarding OS and Free software. Although not specifically AEC software but for myself and others that plan to record video tutorials and post edit, Blackmagic offers a world class video editing application called Davinci Resolve. Fantastic application and very open community.
Free and open source NURBS Modeller.
License: BSD https://ayam.sourceforge.net/
Ayam is a free 3D modelling environment for the RenderMan interface, distributed under the BSD licence.
The current stable version is 1.33, released 25. Jul 2023.
Ayam currently runs on Unix (Linux, IRIX, FreeBSD tested), Win32 (Win95-Win2000, XP, 7), and Mac OS X (Aqua and X11).
Ayam features at a glance:
RIB (RenderMan Interface Bytestream) export and import.
Support for NURBS curves and (trimmed) NURBS surfaces, Boxes, Quadrics (Sphere, Disk, Cylinder, Cone, Hyperboloid, Paraboloid, and Torus), CSG, MetaBalls, Patch Meshes, Polygonal Meshes, and Subdivision Surfaces.
NURBS modelling includes approximating and interpolating curves as well as extrude, revolve, sweep, birail, skin, and gordon objects with caps, holes, and bevels.
First modelling environment to support Subdivision NURBS.
Custom objects that may freely implement their representations (using OpenGL and RIB) and even small GUIs to edit their type specific parameters may be written by the user and dynamically loaded at runtime.
Scripting interfaces: Tcl, JavaScript, Lua; Script objects.
Misc: instancing, arbitrary number of modeling views, object clipboard, independent property clipboard, console, n-level undo.
File formats (r/w): RIB, DXF, 3DM, 3DMF, OBJ, X3D.
Docs: https://ayam.sourceforge.net/docs/ayam.html
INFINIGEN
Infinigen is a procedural generator of 3D scenes, developed by Princeton Vision & Learning Lab. Infinigen is optimized for computer vision research and generates diverse high-quality 3D training data. Infinigen is based on Blender and is free and open-source (BSD 3-Clause License).
BSD 3-Clause License https://infinigen.org/
Acoustic Simulators...
Code_TYMPAN
Code_TYMPAN™ is an open source software for calculating industrial noise in the environment. It allows dealing with 3D realistic geometries and has a convenient Human Machine Interface to help engineers to build 3D models and to achieve analysis needed in environmental noise studies.
GNU General Public License version 3.0 (GPLv3) https://sourceforge.net/projects/code-tympan/
AVRS
AVRS performs spatial 3D-sound processing allowing the arbitrary placement of sound source in auditory space.
GNU General Public License version 3.0 (GPLv3) https://sourceforge.net/projects/avrsystem/
BonsaiGraph
It is a tool to visualize instances of an IFC file loaded into BonsaiBIM , the relationships between instances, and the attribute values of each instance.
LGPL-3.0 license https://github.com/jakob-beetz/bonsaiGraph
Castle Game Engine
Cross-platform (desktop, mobile, console, web) 3D and 2D game engine. Powerful visual editor. Support for open standards like glTF, X3D, IFC and more. Fast clean code using modern Pascal. Free and open-source.
LGPL with static linking exception" license. https://castle-engine.io/
Added following structural engineering python-based packages to the software directory:
concrete-properties
concreteproperties is a python package that can be used to calculate the section properties of arbitrary reinforced concrete sections. concreteproperties can calculate gross, cracked and ultimate properties. It can perform moment curvature analyses and generate moment interaction and biaxial bending diagrams. On top of this, concreteproperties can also generate pretty stress plots!
planesections
A lightweight finite element beam bending library built on libraries like PyNite and OpenSeesPy. The goal of PlaneSections is to make easy-to-use beam anayses, which can be used to quickly document structural calculations.
PyNite
An easy to use elastic 3D structural engineering finite element analysis library for Python.
This is such a fantastic idea! 🙌 A well-structured directory of 100% free tools would be super valuable for anyone in AEC, design, or research who wants to keep their workflow open-source and accessible. Your list is already really comprehensive, and I really like how you’ve grouped tools that cover everything from modeling to analysis and even collaboration.
A few others worth considering: QGIS – Powerful open-source GIS platform for mapping, site analysis, and spatial data management. OpenStudio – Energy modeling software that integrates with EnergyPlus for building performance analysis. Ladybug Tools – Environmental design and simulation plugins (some now work independently of proprietary platforms). Salome – Open-source platform for pre- and post-processing for numerical simulations.
**Hevacomp alternatives – **Not as popular yet, but there are emerging FOSS HVAC calculation tools worth looking into.
I think the directory idea with short descriptions and images could really help newcomers choose the right tool for their stage in the design/construction pipeline. Maybe even tagging tools by category (e.g., Modeling, Simulation, Collaboration, Analysis) would make it super user-friendly.
Added to de Software Directory: BonsaiGraph, IFC Graph Viewer, Castle Game Engine, Code_TYMPAN, AVRS, FreeCAD Solar Workbench
Added to Free Software libraries: PyNite, planesections, concrete-properties, open pile
Here is another one of those mad AI-everything projects, but this idea to use a LLM to maintain a wiki knowledge base probably has some future (30000 stars, so you might have seen this already): https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f
My own build, so biased that it is amazing. In short;
It’s a free open source ifc viewer, data quality checker and clash detection, made looking beautiful.
It loads IFC/glb and other files, accepts file sharing folders as input and output (for bcf, clash files, auto update ifc, etc). All stays in the local browser, doesn’t need a login nor registration.
Has optional addons for PWA, local cpu enhanced clash detection (for faster processing on big models), has a revit live bridge (model viewing and clash detection works with several file formats mixed) and a llm smart bridge (connect to your Claude or gpt desktop app).
Comments
CFAST, MAYO, LEKAN, DESIGN added to Software directory wiki.
Open-Infra-Platform
https://github.com/tumcms/Open-Infra-Platform
IFC viewer.
GPL-V3
Blender Earth Modeler Add-on | 3D Google Earth (City/Terrain) inside Blender
Graphite is an in-development raster and vector graphics package that's free and open source. It is powered by a node graph compositing engine that fuses layers with nodes, providing a fully nondestructive editing experience.
https://graphite.rs/
OSAFE Workbench (FreeCAD addon)
https://github.com/ebrahimraeyat/OSAFE
The OSAFE workbench by Ebrahim Raeyat. This FreeCAD Addon is a collection of civil engineering tools, originally designed as a workaround for issues with CSI SAFE. The addon is available via the regular Addon Manager.
GPL-V3
SOLARIUM
https://github.com/elschilling/solarium
Open Source software to host and share sun path visualizations.
https://wvsolarium.vercel.app/
GPL-V3
Just reviewing this thread regarding OS and Free software. Although not specifically AEC software but for myself and others that plan to record video tutorials and post edit, Blackmagic offers a world class video editing application called Davinci Resolve. Fantastic application and very open community.
FloorPagingTool: Tool for creating floors and coverings to complement FreeCAD's WB BIM
License: unknown
https://github.com/maykowsm/FloorPagingTool
Free and open source NURBS Modeller.
License: BSD
https://ayam.sourceforge.net/
Ayam is a free 3D modelling environment for the RenderMan interface, distributed under the BSD licence.
The current stable version is 1.33, released 25. Jul 2023.
Ayam currently runs on Unix (Linux, IRIX, FreeBSD tested), Win32 (Win95-Win2000, XP, 7), and Mac OS X (Aqua and X11).
Ayam features at a glance:
RIB (RenderMan Interface Bytestream) export and import.
Support for NURBS curves and (trimmed) NURBS surfaces, Boxes, Quadrics (Sphere, Disk, Cylinder, Cone, Hyperboloid, Paraboloid, and Torus), CSG, MetaBalls, Patch Meshes, Polygonal Meshes, and Subdivision Surfaces.
NURBS modelling includes approximating and interpolating curves as well as extrude, revolve, sweep, birail, skin, and gordon objects with caps, holes, and bevels.
First modelling environment to support Subdivision NURBS.
Custom objects that may freely implement their representations (using OpenGL and RIB) and even small GUIs to edit their type specific parameters may be written by the user and dynamically loaded at runtime.
Scripting interfaces: Tcl, JavaScript, Lua; Script objects.
Misc: instancing, arbitrary number of modeling views, object clipboard, independent property clipboard, console, n-level undo.
File formats (r/w): RIB, DXF, 3DM, 3DMF, OBJ, X3D.
Docs: https://ayam.sourceforge.net/docs/ayam.html
GISWATER
https://www.giswater.org/
Giswater software focused to management of water cycle using open source tools
GPL-V3
Blender CAM : https://github.com/blendercam/blendercam
Blender CAM is an open source solution for artistic CAM - Computer aided machining - g-code generation tool.
GPL-2
Added to the wiki list: BlenderCAM, Graphite, Open-Infra-Platform, Solarium, OSAFE, GISWATER
Also deleting spam links
Everything U.S. taxes pay for. https://code.gov/
My personal favorite. https://www.rmc.usace.army.mil/Software/LifeSim/
Interesting. We have this list of agent-based system software https://wiki.osarch.org/index.php?title=AEC_Free_Software_directory#Traffic_and_pedestrian_analysis.2Fsimulation
OpenBuilding tools
Online Energy modelling tools for regulations: Carbon Calculator, TEUI Calculator, TEDI Calculator, Affordability Pie.
Free.
https://openbuilding.ca/tools/carbon-calculator/
https://openbuilding.ca/tools/teui-calculator/
https://openbuilding.ca/tools/ventilation-calculator/
https://openbuilding.ca/tools/affordability-pie/
INFINIGEN
Infinigen is a procedural generator of 3D scenes, developed by Princeton Vision & Learning Lab. Infinigen is optimized for computer vision research and generates diverse high-quality 3D training data. Infinigen is based on Blender and is free and open-source (BSD 3-Clause License).
BSD 3-Clause License
https://infinigen.org/
https://openswmm.org/- storm water management modelling software
https://github.com/TchilDill/openpile - Pile Calculation
Acoustic Simulators...
Code_TYMPAN
Code_TYMPAN™ is an open source software for calculating industrial noise in the environment. It allows dealing with 3D realistic geometries and has a convenient Human Machine Interface to help engineers to build 3D models and to achieve analysis needed in environmental noise studies.
GNU General Public License version 3.0 (GPLv3)
https://sourceforge.net/projects/code-tympan/
AVRS
AVRS performs spatial 3D-sound processing allowing the arbitrary placement of sound source in auditory space.
GNU General Public License version 3.0 (GPLv3)
https://sourceforge.net/projects/avrsystem/
BonsaiGraph
It is a tool to visualize instances of an IFC file loaded into BonsaiBIM , the relationships between instances, and the attribute values of each instance.
LGPL-3.0 license
https://github.com/jakob-beetz/bonsaiGraph
IFC Graph Viewer
Aplicación de visualización de gráficos para archivos IFC
MIT license
https://github.com/kiyuka829/ifc-graph-viewer
Castle Game Engine
Cross-platform (desktop, mobile, console, web) 3D and 2D game engine. Powerful visual editor. Support for open standards like glTF, X3D, IFC and more. Fast clean code using modern Pascal. Free and open-source.
LGPL with static linking exception" license.
https://castle-engine.io/
Added following structural engineering python-based packages to the software directory:
concrete-properties
concreteproperties is a python package that can be used to calculate the section properties of arbitrary reinforced concrete sections. concreteproperties can calculate gross, cracked and ultimate properties. It can perform moment curvature analyses and generate moment interaction and biaxial bending diagrams. On top of this, concreteproperties can also generate pretty stress plots!
planesections
A lightweight finite element beam bending library built on libraries like PyNite and OpenSeesPy. The goal of PlaneSections is to make easy-to-use beam anayses, which can be used to quickly document structural calculations.
PyNite
An easy to use elastic 3D structural engineering finite element analysis library for Python.
This is such a fantastic idea! 🙌 A well-structured directory of 100% free tools would be super valuable for anyone in AEC, design, or research who wants to keep their workflow open-source and accessible. Your list is already really comprehensive, and I really like how you’ve grouped tools that cover everything from modeling to analysis and even collaboration.
A few others worth considering:
QGIS – Powerful open-source GIS platform for mapping, site analysis, and spatial data management.
OpenStudio – Energy modeling software that integrates with EnergyPlus for building performance analysis.
Ladybug Tools – Environmental design and simulation plugins (some now work independently of proprietary platforms).
Salome – Open-source platform for pre- and post-processing for numerical simulations.
**Hevacomp alternatives – **Not as popular yet, but there are emerging FOSS HVAC calculation tools worth looking into.
I think the directory idea with short descriptions and images could really help newcomers choose the right tool for their stage in the design/construction pipeline. Maybe even tagging tools by category (e.g., Modeling, Simulation, Collaboration, Analysis) would make it super user-friendly.
No Open Source Software...
Added to de Software Directory: BonsaiGraph, IFC Graph Viewer, Castle Game Engine, Code_TYMPAN, AVRS, FreeCAD Solar Workbench
Added to Free Software libraries: PyNite, planesections, concrete-properties, open pile
i have linux version compiled by myself
https://disk.yandex.ru/d/LooI-v2ZVwWAUw
Hello hello! Maybe you already know, but I just discovered https://open-aec.com/.
Looks very interesting, and full of potentially useful tools (2d cad, gant charts) that seems to be developed with ifc compatibility.
https://open-2d-studio.open-aec.com/
https://open-planner-studio.open-aec.com/
https://open-calc-studio.open-aec.com/
Anyone knows about that project?
Here is another one of those mad AI-everything projects, but this idea to use a LLM to maintain a wiki knowledge base probably has some future (30000 stars, so you might have seen this already): https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f
www.Clashcontrol.io
My own build, so biased that it is amazing. In short;
It’s a free open source ifc viewer, data quality checker and clash detection, made looking beautiful.
It loads IFC/glb and other files, accepts file sharing folders as input and output (for bcf, clash files, auto update ifc, etc). All stays in the local browser, doesn’t need a login nor registration.
Has optional addons for PWA, local cpu enhanced clash detection (for faster processing on big models), has a revit live bridge (model viewing and clash detection works with several file formats mixed) and a llm smart bridge (connect to your Claude or gpt desktop app).
Give it a try and let me know what you think!
Find the GitHub repository here; https://github.com/clashcontrol-io/ClashControl
GeoLibre
A free and open-source, lightweight, cloud-native GIS platform for visualizing, exploring, and analyzing geospatial data.
MIT license
https://geolibre.app/
https://github.com/opengeos/GeoLibre
Also have a look to https://github.com/opengeos