Material flow analysis — Sankey generator

Upload a CSV describing your event's flows. Get back a publishable Sankey diagram with calibrated CO2 estimates.

How to use this

  1. Download the empty template below, or use your existing CSV if it follows the same shape.
  2. Fill in event metadata, then one row per flow under the line items section.
  3. Drop the file on the area below. The diagram appears inline.
  4. Right-click the diagram → "Save image as…" to keep the SVG.

The CSV format follows a standard layout: a metadata block, then a line items section. Categories include energy, drinks, resource_materials, food, etc. Destinations include emitted, reuse, material_recycling, composted, etc. Free-string item names are allowed but won't get a CO2 estimate unless they match a known factor.

Download empty template (.csv)

Upload your CSV

Layout of the diagram.
Full colour scheme for flows and labels.
Overrides the header / title / brand colour only.
PNG, JPG, or SVG. Placed bottom-right (J-Style) or inside the disc (G-Style).

Your CSV is sent to the server, processed in memory, and discarded after rendering. Nothing is stored, logged, or shared. This is an early-access tool from Ajar AI; treat results as preliminary.

Result

Sankey