SankeyFlow turns a list of flows into a Sankey diagram — the chart that shows how a quantity splits and merges as it moves from one place to another. Budgets, energy use, website traffic, headcount, material flows: if it's a total that divides into parts, SankeyFlow draws it. THREE WAYS TO BUILD • Type it. One line per flow: Salary [3000] Budget. • Build it visually. A drag-to-reorder list of source, amount, and target — rearrange rows to restack the diagram. • Import a spreadsheet. Paste from Excel or Numbers, or open a CSV or XLSX file. TUNE EVERY DETAIL Set the flow direction — left, right, up, or down. Adjust node width and spacing, ribbon curve and opacity. Give nodes their own colours from a hand-tuned palette. Show or hide names and values. Set a unit and a background. EXPORT ANYWHERE Save to PNG, PDF, or SVG. Choose an aspect ratio or an exact pixel size, set a resolution, add margins — all with a live preview. The SVG output is clean and standards-compliant, ready for the web or further editing in a vector app. A REAL MAC APP Documents with autosave and versions. Full keyboard control. Light and dark. SankeyFlow runs entirely on your Mac — no account, no sign-in, no network. Nothing you make ever leaves your machine.