Emittery is a simple, fast, and lightweight asynchronous event emitter. It allows you to register listeners for specific event names and emit events with data to those listeners. It boasts excellent performance and a minimal footprint, making it ideal for real-time applications, notifications, and decoupling components. Emittery supports synchronous and asynchronous listeners, wildcards, and event filtering, all within a concise and easy-to-use API. Its TypeScript support ensures type safety and a smooth developer experience.