DOM Manipulation: jQuery makes it straightforward to select and manipulate HTML elements. You can easily change content, attributes, and styles using simple syntax. 

Event Handling: jQuery provides a unified way to handle events across browsers. You can attach event handlers to elements without worrying about browser compatibility.

Animations and Effects: jQuery includes built-in methods for creating animations and visual effects, such as fading, sliding, and showing/hiding elements.

AJAX: jQuery simplifies making asynchronous requests to the server. Its $.ajax() method, along with shorthand methods like $.get() and $.post(), makes working with AJAX easier.

Cross-Browser Compatibility: jQuery abstracts away browser inconsistencies, ensuring that your code works across different browsers.

Plugins: jQuery’s plugin architecture allows developers to create and use plugins to extend its functionality. This makes it possible to add complex features with minimal effort.