Massing.Cloud

Construction drawing review engine — PDF markup, calibrated takeoff, issue pins, revision compare, XFDF/BCF interchange. Extracted from Massing as a reusable plugin kernel.

Standalone IFC-native 3D/2D CAD studio for the browser: view and author models, generate plans from them, and mark those plans up. Offline-capable local kernel, pluggable remote kernel. MIT.

An openBIM family library you can actually redistribute — IFC4 content generated parametrically from public standards, CC0

Free CC0 .mass sample projects for the Massing AEC platform — one per building sector, each carrying an LOD 400 model plus the executive report, budget, schedule, pro forma, registers and drawings a project actually runs on.

Standalone AIA-style GC billing engine: G702/G703 pay applications, schedule of values, change orders, retainage, stored materials and lien waivers — with a provable tie-out. Self-hostable, MIT.

Standalone construction scheduling engine: multi-calendar CPM, DCMA 14-point, Primavera XER and MS Project MSPDI, resource levelling and delay attribution. The engine is pure stdlib and vendorable.

Reality capture for AEC in pure Python - content-first format detection, declared-frame coordinate math, plan-linked walkthroughs, and a dependency-free web viewer.

Framework-agnostic kernel and plugin architecture for a federated AEC platform

A federated AEC platform in pure Python: plugin kernel, 15 capability families, content-addressed version control, server-side geometry, browser viewer.