OpenConstructionERP
Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. 120,000+ priced positions, 44 languages, 190+ modules, cost data fo
What is OpenConstructionERP?
Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. 120,000+ priced positions, 44 languages, 190+ modules, cost data for 40+ markets. AGPL-3.0. pip install openconstructionerp
Overview of OpenConstructionERP
What it is
OpenConstructionERP is an open-source workspace for construction project management. It is described as a leading open-source platform for professional BOQ, CAD and BIM takeoff, 4D scheduling, 5D cost model, and tendering, all in one self-hosted platform. The software is licensed under AGPL-3.0 and is free forever with no subscriptions or per-seat fees. It supports 44 languages, 30+ regional standards, and includes 120,000+ cost items across nine cost bases covering 40+ markets. The project has 190+ modules and 293 guided cases.
Key features
- Professional BOQ, CAD and BIM takeoff, 4D scheduling, 5D cost model, and tendering in a self-hosted platform.
- AI-powered estimation: connect any LLM provider (Anthropic, OpenAI, Gemini, Mistral, Groq, DeepSeek) for smart estimation.
- 120,000+ cost items from nine cost bases covering 40+ markets (global CWICR plus eight national bases).
- 44 languages with full UI translation and right-to-left support for Arabic, Urdu, Persian, and Hebrew.
- 30+ regional standards including DIN 276, NRM 1/2, CSI MasterFormat, GAEB, ГЭСН, DPGF, GB/T 50500, CPWD, ÖNORM, Birim Fiyat, Sekisan, SINAPI, and more.
- 190+ modules and 293 guided cases.
- Self-hosted: everything runs on your machine; no data leaves your network.
Use cases
Construction project management, including estimating, bill of quantities (BOQ) creation, CAD/BIM takeoff, cost modeling, scheduling, tendering, procurement, finance, and contract management. The software is used across multiple countries and languages, with guided playbooks for specific regions (USA, UK, Canada, Québec, France, Germany, Spain, Italy, Bulgaria, Croatia, China).
Getting started
Three installation methods are available: desktop app (download from openconstructionerp.com/download), pip, or Docker. The pip command is:pip install openconstructionerpFor detailed prerequisites and step-by-step instructions, see the repository README.
License and pricing
Licensed under AGPL-3.0. The software is free forever with no subscriptions, no per-seat fees, and no vendor lock-in. Pricing type is open source.
Based on the project's public README and repository metadata.
