Starting the library.
Fetching Python for the browser, about 10 MB, once.
Add a component, or open a homework example from Files.
Choose a component, then click or drag it onto the drawing.
Connect nodes with ideal links. Drop a resistance onto a lead for series insertion, or onto a resistance for parallel insertion.
Select a component to edit its properties. Units and the notation picker help with temperature and scientific symbols.
Open the Solve tab in the right panel, supply known values, and choose the unknowns. Review the proposed results before applying them.
Use File → Export to save an image, interactive HTML page, or raw JSON diagram.
Full editor documentation