CodeNav is a Chrome add-on that aims to make code exploration on Github a breeze. With its intuitive features, developers can navigate through code more easily and efficiently.

One of the standout features of CodeNav is the ability to hover over a variable and instantly highlight other references to that variable. This visual representation on the scrollbar allows developers to quickly identify where else in the codebase that variable is being used. This can be especially helpful when trying to understand the flow of a project or when refactoring code.

In addition to variable highlighting, CodeNav also allows users to click on an object or variable to search for other instances of it within the same project. This feature enables developers to quickly find all occurrences of a particular object or variable, saving time and effort in manual searching.

Overall, CodeNav is a valuable tool for developers who frequently work with code on Github. Its intuitive features enhance code exploration and make it easier to understand and navigate complex projects.