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Karamba3D

Parametric finite element analysis for Grasshopper

Interactive FEA plugin embedded in Grasshopper that combines parametric geometry with accurate finite element analysis for structural design. Enables quick structural feedback in early design phases without leaving the parametric design environment.

Bootstrapped (not publicly disclosed) raisedEstablished
Founded 2010 · Leading international architects and structural engineers (exact count not publicly disclosed); used by University of Applied Arts Vienna, research institutions, and architecture/engineering firms worldwide
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WHY IT EXISTS

Why This Tool Exists

The Problem

Structural engineers interrupt their parametric design workflow to set up external FEA software, losing design intent and efficiency. Running separate structural analysis tools prevents real-time design iteration and forces repetitive model setup for each design variation.

The Solution

Embeds parametric FEA directly in Grasshopper, enabling instant structural analysis feedback without leaving the design environment. Engineers can optimize structures for performance while maintaining full parametric control, testing multiple design iterations in minutes instead of hours.

USAGE

How You Use It

Delivery Method
Desktop PluginLicense-based SaaS
Integrations
GrasshopperRhinoBHoM (Building Information Modeling Hub)SpeckleGeometry GymSAF format export
Disciplines
Architecture, Structural Engineering, Construction
Workflows
Design & BIM
Project Phases
Pre-Design, Schematic Design, Design Development
Project Types
Commercial, Residential, Infrastructure, Institutional, Mixed-Use
TRANSPARENCY

Data Transparency

Exactly what this tool uses and how

Input
What it needs
Required:3D geometry (curves, surfaces, solids), Support conditions (fixed points/lines), Load definitions (forces, pressure, gravity)
Optional:Material properties, Cross-section definitions, Optimization constraints, BIM models (IFC), Previous analysis results
Formats:Grasshopper native geometry, Rhino 3DM models, IFC (BIM), SAF format import
Output
What you get
Format:Structural analysis results with parametric geometry optimization
Fields:Deformation vectors and displacements, Stress and strain distributions, Utilization ratios for structural members, Force diagrams (shear, bending moment), Buckling modes and critical load factors, Reaction forces at supports, Modal analysis frequencies, Optimized geometry for form-finding
Algorithm
How it works
Model:Proprietary finite element solver with parametric integration
Accuracy:Commercial-grade FEA (comparable to STAAD Pro, SAP2000); accuracy validated through academic research and professional practice
Privacy
How your data is protected
Retention:Analysis files stored locally in user Rhino project; no cloud data retention by default
Training:Not publicly specified whether analysis data used for model training
Compliance:Not publicly specified; standard commercial software privacy practices
API
Integration
Endpoint:C# API documentation available at https://www.karamba3d.com/help/3-1-4/
Method:Native Grasshopper components and C# scripting interface
USE CASES

Use Cases

  • ·Real-time structural optimization during parametric design iteration
  • ·Form-finding for shell and membrane structures (catenary, funicular)
  • ·Rapidly testing multiple structural systems for feasibility
  • ·Early-stage structural validation before detailed design
  • ·Teaching structural engineering with parametric feedback
  • ·Design automation for repeated structural configurations
  • ·Integration with BIM workflows for structural intelligence
  • ·Stress-informed topology optimization for material efficiency
PRICING

Pricing

Free
30-day free trial available
Pro
PRO License: $1,067.00 (perpetual license, commercial use); EDU License: $36.00 (2-year license, educational use)
Enterprise
LAB License Kit: 10 seats perpetual (educational institutions); Custom pricing for volume/site licenses; Resellers provide technical support and training
Sources & Research NotesResearch date: 2026-04-04
Data Sources (16)
Fields Checked (18)
problem, solution, deliveryMethod, integrations, disciplines, projectPhases, projectTypes, yearFounded, maturityStage, pricing, api-documentation, privacy-policy, license-type, vendor-information, useCases, algorithm-approach, input-formats, output-fields
Not Found (7)
fundingTotal, exact-customerBase-count, soc2-compliance-certification, iso27001-certification, specific-data-training-policy, compliance-certifications, webhook-support
About this research: This record summarizes the cited sources and fields checked. A research date does not establish hands-on testing. Consult the original sources for current details and limitations.
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