OpenConstructionERP | QTO, BOQ and AI estimating with IFC and Revit
Open-source ERP for construction estimation and project management
Professional BOQ, 4D/5D planning, AI-powered estimation, CAD/BIM takeoff — all in one platform.
GitHub:
https://github.com/datadrivenconstruction/OpenConstructionERP
I've spent about ten years working on construction estimation and ERP, and the one thing that kept bothering me is how few open alternatives there are on the priced BOQ and 5D side. The software is proprietary, and the cost catalogues behind it are too.
So I've been building OpenConstructionERP. AGPL-3.0, runs locally, reads IFC directly, and ships with an open cost catalogue (CWICR, about 55k items in 9 languages) as actual open data.
OpenConstructionERP is an open-source construction ERP built for local-first cost estimating, quantity takeoff, and CAD/BIM data workflows. It runs on your own machine, does not require a cloud account or subscription, and keeps project data under your control.
In this full walkthrough ⬇️ I show how the system connects CAD/BIM models, drawings, PDF takeoff, Bill of Quantities, priced estimates, data exploration, and AI-assisted estimating on top of one shared object model.
The project is released under AGPL-3.0 and includes a 55,000-item CWICR cost catalogue, support for 11 regional price databases, and native import workflows for RVT, IFC, DWG, DGN, and PDF through the cad2data pipeline.
I'd really appreciate any criticism, feedback or pushback from the community. That's the main reason I'm posting
here.
Comments
Hans many thanks, there's currently a rendering issue with IFC—I think the quality will be good in a week. But if you have Revit or DWG files, you can definitely work with them on the platform. If you have any comments or suggestions, please send them via private message, create an issue on GitHub, or email [email protected]
Hans, thank you very much 🤝. It seems there’s an issue with downloading the converters on your computer. Additional checks to verify that the converters are installed correctly have now been added - please try updating or installing a new version of the platform. Also, please let me know which operating system you’re using - Linux or Windows.
Does it also run on Mac (Apple ARM) ?
Great that it also opens DWG and RVT.
I assume it would not be able to read the BIM Info from a DWG from Bricscad .... But could it also save a RVT to IFC ?
Yes, you can also convert Revit to IFC in Linux without using Autodesk products—here is a Revit to IFC converter, and you can find versions for Linux and Windows there as well: https://github.com/datadrivenconstruction/cad2data-Revit-IFC-DWG-DGN
OpenConstructionERP v7.5.0 - from drawing to a costed and scheduled project (AGPL-3.0)
Hi all,
We just released v7.5.0 of OpenConstructionERP, an open-source, self-hosted ERP for construction companies. The short pitch people keep using: "WordPress for construction" - a core platform plus 86 optional modules (estimating, QTO, scheduling, tendering, validation, reporting...), and you enable only what you need.
What's new in 7.5.0:
Quantities from Revit, IFC and DWG converted into ready-to-use, resource-based cost estimates:
Validation is part of the workflow, not an afterthought - imports and estimates are checked against configurable rule sets, with a traffic-light report:
One platform, only the modules you need:
The full path stays connected - drawing → quantities → resource-based estimate → validation → costed and scheduled project, without exporting between disconnected tools:
Everything is open-source (AGPL-3.0), self-hosted, data in open exportable formats.
Demo (no signup): https://openconstructionerp.com/demo
GitHub: https://github.com/datadrivenconstruction/OpenConstructionERP
Release notes: https://openconstructionerp.com/news/v7-5-0.html
Feedback and criticism very welcome - most of what shipped between v3 and v7 started as a user message.