Sankey Diagram Maker

A free, offline, multi-language app to create beautiful sankey flow diagrams.

Visualize where things flow. Sankey Diagram Maker turns numbers into beautiful, story-telling flow diagrams that show how value, energy, money, traffic, or anything else moves between categories.

Sankey Maker gives you a polished diagram in seconds, not hours.

What you can do

1. Add flows in seconds — three taps per row: source, target, value. Live preview as you type.
2. 12 ready-made templates — Personal Budget, Energy Flow, Sales Funnel, Web Traffic, Carbon Footprint, Customer Journey, Migration Flow, Water Usage, and more.
3. 12 stunning color palettes — from professional Tableau to Aurora, Sunset, Ocean, Forest, Rose Gold, and Cyber.
4. Total control over layout — node width, spacing, link opacity, corner radius, alignment (justify, left, right, center).
5. Smart labels — toggle names and values independently, customize font, weight, size, and color.
6. Custom backgrounds — solid colors or PRO gradient backgrounds.
7. Import anything — paste CSV, TSV, or JSON. Smart auto-detection of separators and headers.
8. Save your work — keep diagrams in your library with live thumbnails and one-tap reload.
9. Embed anywhere — generate ready-to-paste HTML/JavaScript embed code.
10. Beautiful dark mode that you'll actually want to use.


Export every way

1. PNG HD (1920×1080)
2. PNG 4K (3840×2160)
3. SVG vector — infinite scaling, edit in Illustrator/Figma
4. JSON — full data, reimport anytime
5. CSV — open in Excel, Numbers, Google Sheets
6. Direct share — send straight to apps

More features

Why Sankey Maker

Sankey diagrams are one of the clearest, most persuasive ways to show flow — but most tools are clunky desktop software or web apps locked behind paywalls. Sankey Maker brings the full experience to your pocket: fluid, fast, mobile-native, and beautiful by default.