Aurelia is a modern JavaScript framework designed for building web applications. It emphasizes simplicity and flexibility, allowing developers to create rich user interfaces with minimal effort. Aurelia uses a convention-over-configuration approach, which means it provides sensible defaults to streamline the development process. The framework supports two-way data binding, making it easy to synchronize the model and view. It also integrates well with other libraries and tools, enhancing its versatility. Aurelia's architecture is modular, enabling developers to use only the parts they need, which can lead to more efficient and maintainable code.