kieler/elkjs

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2726 stars · 121 forks observed · 2026-08-28

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

elkjs is a JavaScript port of the Eclipse Layout Kernel (ELK), providing automatic graph layout algorithms, most notably a layer-based (Sugiyama) algorithm suited for directed node-link diagrams with ports. It computes element positions only - it is not a diagramming or rendering framework.

Use cases

• automatically lay out graph diagrams in the browser
• compute node and edge positions for flowcharts or dataflow diagrams
• add layered graph layout to a JavaScript diagram editor
• route edges in node-link diagrams with ports
• integrate automatic layout with sprotty or other diagram frameworks

When to choose

• you need automatic, deterministic graph layout in JavaScript or a web app
• your diagrams are directed with ports and benefit from layered (Sugiyama) layout
• you already have a rendering/diagramming layer and only need layout computation

When to avoid

• you need a full diagramming framework with rendering, styling, or interaction
• you need standalone edge routing only (a known limitation)
• you need a non-JavaScript environment - use the native Eclipse ELK instead

Facets

library · maturity active

graphics developer-tools graphics web-development developer-tools browser cross-platform graph-layout diagram-layout layered-layout sugiyama-algorithm elk edge-routing dataflow-diagrams nodejs javascript

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