100% Free to Use
No sign up, no trial limits, no credit card
Fast Analysis
Linear, P-Delta & tension/compression-only
Open Source Engine
Powered by PyNite
Free Forever, Pay for More
Use the full analysis tool without any account. Sign up for cloud features when you need them.
No Account
- • Full 3D modeling tools (20 node limit)
- • All analysis types
- • Results visualisation
- • Local browser storage
Free Account
- • Everything above, plus:
- • 20 cloud-saved projects
- • Settings sync across devices
- • Access from any computer
Pro Subscription
- • Everything above, plus:
- • Unlimited cloud projects
- • Unlimited nodes
- • Priority support
Professional Structural Analysis Tools
Everything you need to model and analyse beam, frame, and truss structures.
3D Modeling
Intuitive 3D modeling with smart snapping, node placement, and element creation
Smart Selection
Box selection, multi-select, and intelligent filtering for efficient modeling
Copy & Extrude
Quickly duplicate and extend structures with powerful copy and extrude tools
Multiple Analysis Types
Linear, P-Delta (2nd order), and general analysis with tension/compression-only members
Results Visualization
Bending moment, shear, axial force, torsion diagrams with reactions and deflected shape
Load Combinations
Define load cases and combinations with factors for design code compliance
Why Choose AutoCalcs?
Traditional FEA software is expensive and complex. We built AutoCalcs to be free, simple, and accessible to everyone.
- No Sign Up Required
Start using immediately. Your models save to your browser.
- Open Source Engine
Built on PyNite, a well-tested open-source FEA library.
- Cloud-Based
No installation. Works in your browser on any device.
- Pay Only If You Need More
Subscription only for cloud storage and large models.
