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Dev tools · February 21, 2026

ARE Playground—Action Rule Event Engine

Open-source rule engine for JS, C#, and Dart + playground

What it does

ARE (Action Rule Event) is a lightweight, dependency-free rule engine. Define events, write rules with conditions, and attach actions. When an event fires, matching rules execute automatically. The interactive playground lets you experiment with real scenarios — fire events, watch the engine pipeline in real time, debug rules condition by condition, and visualize how everything connects. Available on npm, NuGet, and pub.dev.

Does the same job

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