ncase/loopy

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1743 stars · 243 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

LOOPY is a browser-based tool for modeling and simulating systems by drawing circles and arrows (causal loop diagrams). It lets users play with interactive simulations to build intuition about complex systems, and remix or share others' models.

Use cases

• model a system by drawing circles and arrows
• simulate causal loop diagrams interactively
• ask what-if questions about a system's behavior
• teach systems thinking in a classroom
• remix and share other people's system models
• build intuition for feedback loops without coding

When to choose

• you want a no-code, drawing-based way to explore feedback loops and system dynamics
• you're an educator introducing systems thinking interactively
• you want a public-domain tool you can freely reuse or remix
• you want to share and remix simulations via a simple web page

When to avoid

• you need rigorous quantitative system dynamics modeling with precise equations
• you need offline desktop simulation software
• you need large-scale or data-driven simulation beyond simple causal diagrams

Facets

application · maturity maintenance

simulation data-visualization simulation education data-visualization developer-tools browser causal-loop-diagrams systems-thinking drawing-tool interactive-simulation public-domain education web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="ncase/loopy")