nowthis/sankeymatic

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1416 stars · 182 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

SankeyMATIC is a free, browser-based Sankey diagram builder that lets users describe flows as plain text and customize the diagram's appearance interactively. It exports finished diagrams as PNG images or SVG code and saves work in progress as readable plain-text files, with all processing done locally in the browser.

Use cases

• create sankey flow diagrams from text input
• visualize budget or financial flows as a sankey diagram
• export a sankey diagram as svg or png
• build flow diagrams without coding
• make energy or money flow diagrams in the browser
• save and diff diagram definitions as plain text

When to choose

• you need polished Sankey diagrams quickly with zero coding
• you want a free, private tool that runs entirely in your browser
• you need SVG/PNG export for reports or presentations

When to avoid

• you need programmatic or automated diagram generation in a build pipeline
• you need diagram types beyond Sankey flows
• you need a server-side or CLI rendering solution

Facets

application · maturity active

data-visualization charts data-visualization web-development browser sankey-diagram svg-export png-export diagram-generator no-code d3 web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="nowthis/sankeymatic")