Sankey Studio turns plain text or small CSV, TSV, Markdown, or JSON files into clear Sankey diagrams. Start from income statements, household budgets, energy flows, or your own data; adjust spacing, colours, sorting, and zoom; then export SVG or PNG. It runs without an account and includes a local parsing fallback when AI normalization is unavailable. Built for analysts, students, operators, and anyone who needs to explain how quantities move.