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Luigi

Luigi is a micro frontend JavaScript framework for building administrative user interfaces from local and distributed views, giving modular, technology-agnostic UI modules a unified experience. Luigi Core and Luigi Client communicate through the browser’s postMessage API. Software implementing the micro-frontend pattern; Apache 2.0, since 2018.

Luigi is the micro-frontend pattern made concrete: one shell, many independently built views. It is part of NeoNephos, a Linux Foundation Europe project.

  • Core and client - Luigi Core hosts navigation and layout; Luigi Client runs inside each view, talking over postMessage.
  • Releases - v2.32.0, 5 October 2026.