openconstructionerp 4.3.1

Open-source construction cost estimation — multi-currency BOQ, AI vector matching, CAD/BIM takeoff without IfcOpenShell, resource-based cost DB import with example templates, 48 regional catalogues, 24 languages. AGPL-3.0. After install, run: openconstructionerp

OpenConstructionERP

The #1 open-source platform for construction cost estimation

Professional BOQ, 4D scheduling, 5D cost model, AI-powered estimation, CAD/BIM takeoff — all in one platform.

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▶ After pip install, type one command: openestimate

That's the only thing you need to remember. It prints a welcome, asks press o + Enter to open the app in your browser, then starts the server at http://127.0.0.1:8080.

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Quick Start

pip install --upgrade openconstructionerp
openestimate                 # welcome screen + o-to-open-browser + server

Requires Python 3.12+. Check with python --version.

That's the whole first run. The bare openestimate command:

1. Prints a welcome with links to docs, issues, and the community chat.
2. Creates a local SQLite database and data folder under ~/.openestimate/.
3. Starts the server at http://127.0.0.1:8080 and opens your browser.

Demo login: [e-mail] / DemoPass1234!

Prefer explicit steps? Run them yourself:

openestimate init-db         # create the local database
openestimate serve           # start the server
openestimate doctor          # health check if anything looks wrong
openestimate welcome         # re-print the welcome screen + support links

Where to ask questions

• Community chat (Telegram): https://t.me/datadrivenconstruction
• Bug reports / feature requests: https://github.com/datadrivenconstruction/OpenConstructionERP/issues
• Docs: https://openconstructionerp.com/docs

Features

• BOQ Editor — Hierarchical Bill of Quantities with AG Grid, markups, validation, export (PDF/Excel/CSV/GAEB)
• 55,000+ Cost Items — CWICR database across 48 regions with resource breakdown
• 7,000+ Resource Catalog — Materials, labor, equipment with prices
• AI Estimation — Generate BOQ from text, photo, PDF, Excel, or CAD/BIM (7 LLM providers)
• 4D Schedule — Gantt chart with CPM, dependencies, auto-generate from BOQ
• 5D Cost Model — Earned Value Management, S-curve, budget tracking
• 20 Regional Standards — DIN 276, NRM, MasterFormat, GAEB, and 16 more
• 21 Languages — Full i18n with RTL support
• 42 Validation Rules — Automatic compliance checking

CLI Commands

openestimate serve   [--host HOST] [--port PORT] [--data-dir DIR] [--open] [--quiet]
openestimate init-db [--data-dir DIR]    # Create local SQLite DB + data dirs
openestimate doctor  [--port PORT]       # Run installation health checks
openestimate seed    [--demo]            # Load demo project data
openestimate version                     # Show version info

The openconstructionerp command is also available as a longer alias for both binaries.

Links

• Documentation
• GitHub
• Telegram Community

License

AGPL-3.0 — Data Driven Construction