datadrivenconstruction

datadrivenconstruction / OpenConstructionERP

Public

The #1 open-source platform for construction cost estimation. BOQ, 4D/5D, AI, CAD/BIM takeoff, 21 languages, 55K+ cost items

openconstructionerp.com 4d 5d ai autocad bill-of-quantities
43
9
100% credibility
Found Apr 07, 2026 at 43 stars -- GitGems finds repos before they trend. Get early access to the next one.
Sign Up Free
AI Analysis
TypeScript
AI Summary

OpenConstructionERP is a free, self-hosted platform for construction professionals to create detailed cost estimates, manage bills of quantities, perform CAD takeoffs, and plan projects using AI assistance across 20 global standards.

How It Works

1
🌐 Discover OpenConstructionERP

You find this free tool for creating construction estimates and managing projects, with a live demo to try right away.

2
🚀 Get started in minutes

Click one button to install it on your computer, and it launches a full web app you can use immediately.

3
🗺️ Choose your world

Pick your language from 21 options and your region to load matching cost prices automatically.

4
🤖 Let AI build your first estimate

Describe your building in words or upload a photo, and the AI instantly creates a detailed list of costs and quantities.

5
📊 Review and tweak your bill

Check the smart list of work items, adjust numbers, add from the huge price library, and see totals update live.

6
✅ Validate and perfect it

Run quick checks to spot issues, fix them easily, and know your estimate meets professional standards.

🎉 Export your pro estimate

Download a polished report as PDF or Excel, ready to bid or share with your team — all for free!

Sign up to see the full architecture

5 more

Sign Up Free

Star Growth

See how this repo grew from 43 to 43 stars Sign Up Free
Repurpose This Repo

Repurpose is a Pro feature

Generate ready-to-use prompts for X threads, LinkedIn posts, blog posts, YouTube scripts, and more -- with full repo context baked in.

Unlock Repurpose
AI-Generated Review

What is OpenConstructionERP?

OpenConstructionERP is a self-hosted, github open source platform for construction cost estimation, built with Python FastAPI backend and React/TypeScript frontend. It delivers full workflows: BOQ editing, CAD/BIM takeoff from Revit/IFC/DWG, AI estimates via any LLM, 4D scheduling, 5D cost models, and exports to PDF/Excel/GAEB. Users get 55k+ cost items across 11 regions, 21 languages, and 20 standards like DIN 276 or NRM—zero subscriptions, all offline.

Why is it gaining traction?

It crushes proprietary rivals like CostX or Sage with free 55k+ items (no add-ons), self-hosted Docker quickstarts, and pip-installable wheels using SQLite out-of-box. The AI advisor pulls real rates from your database, while validation runs 42 rules for compliance. As an open source platform ai with REST API, it hooks devs building custom construction tools without vendor lock-in.

Who should use this?

Quantity surveyors estimating tenders with regional pricing; civil engineers doing 4D/5D BIM takeoffs offline; project managers tracking change orders and risks in teams. Ideal for firms in DACH, UK, or US tired of $300+/mo SaaS, needing multi-language BOQ in self-hosted setups.

Verdict

Early at 43 stars and 1.0% credibility score, but strong docs, demo accounts, and `make quickstart` make it instantly usable—test via Docker in 2 minutes. Grab it if you're in construction eyeing open source github tools; skip if needing enterprise polish.

(198 words)

Sign up to read the full AI review Sign Up Free

Similar repos coming soon.