JustilityCausal loop diagram builder
Map signed causal links, delayed effects and reinforcing or balancing feedback loops.
Connect variables with signed causal links. Review simple feedback loops and mark delayed effects.
Up to 40 nodes and 80 connections on a 1200 × 900 canvas. Edit all content using the fields. Focus a diagram node and use arrow keys to move it (Shift = 30 units); dragging also works. Visual maps describe your model, not verified causation.
Your work stays in this tab. Nothing is saved automatically. Save a readable, unencrypted project file before closing. Downloads remain wherever you save them.
Processed on your device. Your files are never uploaded by Justility.
How privacy worksHow it works
Open causal loop diagram builder, enter your own project details or load the labeled example, then edit nodes and connections and analyze the map. Review the results and download your project to continue later.
Supported formats
Editable JSON project up to 1 MB; SVG diagram and CSV analysis. Up to 40 nodes, 80 links, 120 characters per label and 1,200 per note.
Good to know
Up to 100 directed simple loops or 20,000 search steps; a capped result is explicitly labeled incomplete.
Worked example
Before
Savings → interest earned → savings, both links positive
After
One reinforcing feedback loop
Even negative-link count gives reinforcing polarity; odd gives balancing. This is structural analysis, not dynamic simulation.
Causal loop diagram builder: interpret the result
Map signed causal links, delayed effects and reinforcing or balancing feedback loops. Up to 100 directed simple loops or 20,000 search steps; a capped result is explicitly labeled incomplete. All project files are readable and unencrypted. Save and open them explicitly; there is no automatic browser persistence.
Bayesian belief updaterTroubleshooting
Does reinforcing mean a good causal loop?
No. Reinforcing describes loop polarity, not desirability. Balancing is also structural; delays, magnitudes and other feedback determine actual behavior.
Common questions
Can I use causal loop diagram builder offline?
Prepare this tool using Offline help while online. After preparation, it runs locally with fresh input. Browser cache eviction remains possible; keep project downloads separately.
Can I use this without an internet connection?
Yes, after you prepare this tool from Offline help and the browser retains its assets. Installation is optional. All processing dependencies are bundled locally.