Voltage Profile Plot (matplotlib)
Upload a bus-results CSV (the kind exported from the power-flow lab) and get a publication-ready PNG + PDF voltage-profile chart with G-Code limit bands. Runs python + matplotlib in your browser via Pyodide.
Try sample
bus-results.csv *CSV with at least BusID and Vmag_pu columns (extra columns are ignored).
python · pyodide
First run downloads the Python runtime (~10 MB). It's cached after that — subsequent runs and other Python tools start instantly.
Drops the same matplotlib recipe straight onto your data — same figure as the toolkit copy-paste version, but you don't need a Python install. Use the PDF for Word; use the PNG for slides.