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3D Structural Analysis Software for Beams, Frames, Trusses & Plates

Model, analyse, and design 3D structures in your browser with linear, P-Delta, buckling, modal analysis and steel member design checks.

No signup required to get started.

Model, Analyse, Design

Run modal and buckling analyses, then animate mode shapes and stability results directly in the viewport.

Start immediately with no signup. Scale up as your projects grow.

	No Account $0/month	Free Account $0/month	Pro $29.99/month*
Modelling
Full 3D modelling tools
Load and combination generators
DXF/IFC import
Model health check
Custom sections and materials
Custom section builder analyses		3 / day	Unlimited + FEA integration
Analysis
All analysis types
Analysis runs	2 / day	5 / day	Unlimited
Node limit	8	8	Unlimited
Modes per modal / buckling run	12 / 3	12 / 3	30 / 10
PDF and Excel analysis reports
Design
Steel design checks	3 / month	10 / month	Unlimited
PDF handcalcs
Storage and sharing
Project storage	Local browser	20 cloud projects	Unlimited cloud projects
Settings sync across devices
Share model links
	Start modelling		Go Pro

* $29.99/month when billed annually, or $39.99 month-to-month.

Benchmarked solver. Full calculations for every design check.

Verified Solver
Benchmarked against textbook and published solutions. See the results
Step-by-Step Calculation Sheets
Every design check exports a PDF with each equation shown, not just a pass or fail.
No Procurement
No licence keys or sales calls. Just open it and start.