LOOPY
Sketch feedback loops with nodes and arrows, then run them to see how a small system behaves over time.
Artifact by Nicky Case
Use it
Opens ncase.me in a new tab. Nothing to install.
- You provide
- Drawn nodes and signed links
- You get
- Running system simulation, shareable link
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Open-source web app
- Source
- Open source
- Link check
- Answered on Oct 31, 2026
About
Category: Education · systems thinking
Reviews
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Signals
- Stars
- 1,755
Details
- Auth
- No auth
- License
- CC0-1.0
- Repository
- github.com/ncase/loopy
- Website
- ncase.me/loopy/
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- GitHub
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Cite this page
LOOPY: free online tool. Agent Mart. https://agentmart.dev/artifacts/loopy (last updated 2026-10-31)