Open Source BIM Software

A building model outlives almost every tool used to make it - it has to survive handoffs between architect, engineer, and contractor and stay readable decades into a structure's life, which is exactly where a proprietary, version-locked file becomes a real problem. The open source tools here work in IFC and OpenBIM formats, so the model passes between disciplines and persists as an open record of the building rather than a file hostage to one vendor's roadmap.