Massing

What it is — three pillars on one IFC-keyed model, reached through seven rooms — Deal · Design · Planning · Schedule · Cost · Work · Operate — that stay in the same place for every role: - 🧊 BIM platform — a genuine in-browser authoring tool on That Open Fragments, from a blank model to a permit-ready set: draw/edit walls (incl. sloped-top parapet/shed/gable), columns, slabs, doors/windows, curtain walls, steel connections, rebar cages and MEP (with **port-to-port connectivity) by GUID-stable server-side recipe, with drag-to-move edit-in-place, model undo/redo, automatic drawing inference** (auto on-axis/parallel/perpendicular snap), a family/type system, groups/arrays, phasing, LOD dialing (100→500), a site content library (logistics/furniture/landscaping, auto-classified), a procedural-mesh and an AST-**sandboxed ifcopenshell escape hatch (feature-flagged), authoring guardrails** that reject broken IFC, and an a CAD command line (AutoCAD-style WALL 0,0 5,0 3 / COLUMN 2,2 with aliases, history and spacebar-repeat) alongside an AI command bar (type what to build in plain English); **generate the construction-document set — plans/sections/elevations/schedules → SVG · PDF · DXF**, issuable ARCH-D sheets with titleblocks, and a 3-part MasterFormat project manual; code intelligence — IBC code-analysis (G-series) summary, edition-aware occupancy-load + egress pre-check, jurisdiction-adopted code editions, an approvability pre-flight, a detail-rule engine, and a decision-readiness (RFI-prevention) audit; plus a productivity-rate labour estimate, QA, IDS, BCF, PDF takeoff (calibrated measure / area / count); **layer & align multiple models with federated cross-discipline clash; raise 2D → BIM** (DXF floor plan → IFC walls + spaces) and check the built result with scan-to-BIM deviation (as-built point cloud vs the model surface, % within tolerance + heatmap); also opens meshes & point clouds (OBJ/STL/PLY/glTF · PCD/XYZ/LAS/LAZ) and GIS / topography (GeoJSON vectors · GeoTIFF DEM terrain) as georeferenced reference overlays, with QR sharing - 🏗 GC portal — config-driven modules: RFIs, submittals, change orders, pay apps (G702/G703), CPM schedule, safety/TRIR, closeout (COBie); specification register → spec-driven submittal log (AI/rules extraction of typed submittals from the spec book, with missing-submittal coverage); contract & change-order documents (AIA-style generate · Exhibit A scope · redline · per-party + PAdES digital e-sign); Report Center (executive / cost / EVM / logs → PDF + Excel) - 💵 Development proforma — sources & uses, S-curve draws, XIRR/NPV, JV waterfall — seeded straight from the model ▶ Live demo · ⬇ Download (Win/macOS/Linux) · 📚 Guides · 📄 Project page Sign-in: this app keeps its own accounts. Each member signs up or signs in inside the app with an app username and password; the hub remembers each member's session. Massing is the open-source project ibuilder/massing (https://github.com/ibuilder/massing) by ibuilder, released under MIT. Ion packages it unmodified from commit 523e5b3a120b, adding only a manifest, an icon and a start script.

Written by ibuilder, published to Oikou by Ben Grande.

• ★ 140 stars on GitHub
• Licence: MIT
• Upstream version v0.3.1133
• Built from commit 523e5b3a120b

View the repository on GitHub

Not rated. Nobody has said who this app is suitable for, so Personal Clouds and the Oikou app treat it as 18+.

Internet

It asks to reach these hosts, and no others:

• api.github.com
• identifier.buildingsmart.org

Personal Cloud tools

• Run a Redis server of its own on your Personal Cloud (for its task queue and cache) ion.redis

Notifications

It does not send push notifications.

Storage

Up to 1 GB on your Personal Cloud.

Sign in to add this web app to a Personal Cloud of yours. It runs there, on your own computer, and you open it from there; nothing is installed on your phone.

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