Material flow analysis — Sankey generator

Upload a CSV describing your event's flows. Get back a publishable Sankey diagram with calibrated CO2 estimates.  ·  See it in action →

Upload your CSV

Download empty template (.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.

How this works — click to expand
  1. Download the empty template, 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 above. The diagram appears inline below.
  4. Use the "Download SVG" button to save the diagram, or "View printable summary" to get a PDF-ready page.

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.

Result

Sankey