alien-litReactivity, teleported to Lit

A hyper-performance, zero-overhead reactive state integration for Lit components, powered by alien-signals 👽⚡

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Fine-Grained & Precise

Bypass Lit's component-wide template evaluation. Components subscribe automatically and update only when the signals they read actually change.

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Zero-Boilerplate DX

No decorators, custom template compilers, or lifecycle hooks required. Read your signals naturally in standard templates, and let alien-lit handle the rest.

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Microscopic Footprint

Combined footprint of alien-lit + alien-signals is under ~1.6 KB gzipped. Built specifically for lightweight design systems and micro-frontends.

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Progressive API Styles

Start with the automatic SignalWatcher mixin for effortless reactivity, or progress to the SignalTrackingController for explicit manual dependencies.