Sankey Flow Studio

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

A Sankey diagram shows where things go. Money, energy, water, applicants,

website visitors, tonnes of CO₂ — anything that splits, merges and adds up.

Sankey Flow Studio builds one from a plain list of numbers, right on your

phone, and exports a picture you can put in a report, a slide or a post.

TYPE A LIST, GET A DIAGRAM

Every flow is three things: where it comes from, how much, and where it goes. Type them in a table, or write them as lines of text:

Salary [5200] Take-home

Take-home [1680] Housing

Take-home [2150] Savings

That is the whole format. The diagram redraws as you type.

EIGHT TEMPLATES TO START FROM

Household budget, energy balance, sales funnel, web traffic, carbon footprint, startup cash flow, hiring pipeline and supply chain. Open one, swap in your own numbers, and you are done.

MAKE IT LOOK LIKE YOURS

• Eight colour sets — Cobalt, Slate, Bloom, Ember, Reef, Clay, Neon, Aurora

• Ribbons coloured from the source, from the destination, blended, or neutral

• Ribbon opacity and curve, node width, spacing and corner radius

• Solid, gradient or transparent backgrounds

• A title, a subtitle and seven typefaces

• Labels on the outer edges, beside the nodes, or hidden

• Prefixes and suffixes on every number ($, kWh, t, TWh), decimals and

thousands separators

LAY IT OUT YOUR WAY

Flow left to right, or switch to top to bottom when the story reads better as a

cascade. Untangle the nodes automatically, or order them as entered, largest

first, or A–Z. Tap any node to rename it, give it its own colour, or drag it

into place — and undo anything.

NINE THEMES, LIGHT AND DARK

Ink, Paper, Mist and Sage for daylight. Midnight, Carbon, Blueprint, Orchid and Nord for the dark. One tap makes the diagram match the app, so a dark chart stays dark all the way into the export.

SIZED FOR WHERE IT LANDS

Wide, square, HD, slide, story, portrait, banner, print A4 or poster. Set the

canvas first, then export a PNG — or an SVG that stays sharp at any size.

YOUR LIBRARY, OFFLINE

Save a diagram and it stays on your device. No account, no sign-up, no upload, no connection needed. Open the library to reload, duplicate or delete.

Made for anyone who has to explain a number to someone else — a budget to a household, a quarter to a board, a footprint to a committee, a funnel to a

team.