Massing tool
for Architects and Urban Planners
Draw footprints. Extrude volumes. Chamfer roofs. Run shadow studies. Export to OBJ, STL & DXF — all in the browser, no install.
PLANNING STAGE
Draw building footprints on an infinite snap grid. Use free draw, rectangle, or circle tools. Punch holes with voids for courtyards.
VOLUMETRICS
Extrude footprints to any height. Set building floors, adjust per-building or globally. See live GFA, volume, and FAR metrics.
ROOF CHAMFERING
Shape pitched and shed roofs with per-corner control. Chamfer any edge to create complex roof geometries in seconds.
SHADOW STUDIES
Set location and time. Watch real-time shadows move across your massing model. Evaluate daylight impact on surrounding context.
LIVE METRICS
GFA (m²), building volume (m³), floor area ratio, storey count — all updating in real time as you design.
EXPORT ANYWHERE
Download .OBJ for Rhino/Blender, .STL for 3D printing, .DXF for AutoCAD. Or save as .MASS to continue later.
[01] DRAWING FOOTPRINTS
[02] EXTRUDING VOLUMES
[03] CHAMFERING ROOFS
[04] EXPORT & PREVIEW
Ready to start massing?
No account. No download. Just open and build.
