# OpenConstructionERP (open-source CAD and 3D modelling app)

> OpenConstructionERP is a free, open-source CAD and 3D modelling app for Windows, macOS and Linux. Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. It has 1,060 GitHub stars and is released under the AGPL-3.0 license.

Professional BOQ, CAD and BIM takeoff, 4D scheduling, 5D cost model, and tendering - all in one self-hosted platform. Like WordPress for construction companies - pick modules from the marketplace, drop in your own, or replace ours with custom-built ones. Same plug-and-play model, but for BOQ, scheduling, cost control, BIM, and tendering.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/datadrivenconstruction/OpenConstructionERP |
| Platforms | Linux, macOS, Windows |
| Interface | desktop GUI |
| GitHub stars | 1,060 |
| License | AGPL-3.0 (open source) |
| Replaces | n/a |
| Language | TypeScript |
| Website | https://openconstructionerp.com |
| Official | no |
| Category | CAD & 3D modelling |
| Latest release | v18.8.2 (Oct 22, 2026) |
| Last commit | Oct 28, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/datadrivenconstruction/OpenConstructionERP/releases) or website, or build it from source by following the README.

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