Python framework for building and simulating dynamical systems using block diagrams
Stage
Not given
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Founded
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Based in
IE
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Pricing model
Freemium
Open source
Pricing
Free plan with 3 architectures and 30 items per architecture. Standard plan at $9.90/month for unlimited architectures and items. Enterprise plan available for self-hosted deployment.
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Key features
2D and 3D diagram design
Auto-generate from Terraform and CloudFormation
700+ cloud and open-source components
REST API for programmatic updates
Real-time monitoring and metrics
Interactive embeds for sharing
Customizable components and colors
AI Chat for architecture description
30+ solvers including implicit, explicit, and adaptive integrators
Zero-crossing detection and scheduled events for hybrid systems
Hot-swappable blocks and solvers during active simulation
Hierarchical subsystems for modular component design
MIMO support with multiple input and output ports
Browser-based visual editor with PathView
Domain toolboxes for chemical, battery, vehicle, flight, and RF engineering
Custom blocks through subclassing the base Block class
Supports continuous-time, discrete-time, and hybrid systems
FMI integration to wrap Co-Simulation and Model-Exchange FMUs
What makes it different
Over 700 components for major cloud providers and open-source technologies in one canvas
Import infrastructure as code automatically or describe via AI Chat
Real-time API connection for live monitoring data
Embed interactive diagrams in documentation and dashboards
Readable, scriptable alternative to traditional simulation tools with solver depth
Full ecosystem including FastSim Rust engine and standalone C code generation
Minimal runtime dependencies: only numpy, scipy, and matplotlib
Domain-specific toolboxes for chemical, battery, vehicle, flight, and RF engineering