Industry Foundation Classes, the standard BIM exchange format. Opens in Revit, Navisworks, Solibri and most other AEC software. Works from any loaded model - marks, sections and custom parameters carry over from a .bsw source, everything else exports as geometry only.
ISO-10303, a general-purpose CAD interchange format widely supported by mechanical CAD tools. Faceted planar solids only, no curved surfaces. Works from any loaded model.
Apple's AR format. Opens directly in AR Quick Look on iOS/macOS, so you can walk around the model in augmented reality on a phone or iPad. Works from any loaded model.
An older but still common CAD interchange format. Same scope as STEP, faceted planar solids only. Works from any loaded model.
A simple triangle-mesh format for 3D printing and visualisation. No metadata, just geometry, works from any loaded model regardless of source format.
Wavefront OBJ, a plain triangle-mesh format supported by almost everything (Blender, SketchUp, game engines...). One named object per member, no metadata beyond that. Works from any loaded model.
Import
.bswNative StruCad structural-steel model - full marks, sections, grades and custom parameters, plus grid axes.
.ifcIndustry Foundation Classes BIM format (Revit, Tekla, Navisworks...) - full property sets read from every pset the file carries, not just geometry.
.step / .stpISO-10303 CAD interchange. Faceted planar solids - both simplified POLY_LOOP and full EDGE_LOOP (line/circle edge) topology.
.iges / .igsOlder CAD interchange format. Same scope as STEP - faceted planar solids only.
.usda / .usdzUniversal Scene Description, including Apple's AR package format.
.dxfAutoCAD Drawing Exchange - lines, polylines, 3D faces, and polyface/polygon meshes. Not ACIS 3DSOLID bodies (proprietary kernel format, no public spec).
.objWavefront OBJ - a plain triangle-mesh format supported by almost everything.
.seedSeed43's own save format - full app state (view, colours, hidden items, custom parameters), not just geometry.
or drag and drop a file anywhere in the window
Real-world coordinates
Ties the model to real Easting/Northing by matching one or two picked points to their known real-world position. Display only - nothing about the model's own geometry changes.
Point Anot picked
Point Bnot picked
Controls
Navigation
Left-drag: orbit
Right or middle-drag: pan
Scroll: zoom
Double-click a member: zoom to it
HHide selected
EscClear selection / close panels
Fly mode
Q
W
E
A
S
D
W/S forward & back · A/D left & right · Q/E down & up
View, measure and convert 3D engineering models right here in your browser. Your model is read on your own computer and is never uploaded.
Drop a file anywhereor pick one from your computer, or click a format below to filter the picker
[01] Formats it opens
.bswNative StruCad structural-steel model - full marks, sections, grades and custom parameters, plus grid axes.
.ifcIndustry Foundation Classes BIM format (Revit, Tekla, Navisworks...) - full property sets read from every pset the file carries, not just geometry.
.step / .stpISO-10303 CAD interchange. Faceted planar solids - both simplified POLY_LOOP and full EDGE_LOOP (line/circle edge) topology.
.iges / .igsOlder CAD interchange format. Same scope as STEP - faceted planar solids only.
.usda / .usdzUniversal Scene Description, including Apple's AR package format.
.dxfAutoCAD Drawing Exchange - lines, polylines, 3D faces, and polyface/polygon meshes. Not ACIS 3DSOLID bodies (proprietary kernel format, no public spec).
.objWavefront OBJ - a plain triangle-mesh format supported by almost everything.
.seedSeed43's own save format - full app state (view, colours, hidden items, custom parameters), not just geometry.
[02] What Studio does
Eight formatsBSW, IFC, STEP, IGES, USD, DXF, STL and .seed.
MeasurePoint to point, in real-world coordinates.
ConvertExport to another format in the browser.
Nothing uploadedYour model is read on your own computer. It never leaves it.
Free, alwaysNo account and nothing to install.
Free and open. Part of the Seed43 toolbox at seed43.org.
working...
Keep this tab active while loading, switching tabs pauses large files