Git is a distributed version control system that enables multiple developers to track changes, collaborate, and manage the history of a project's codebase. It allows for branching and merging, giving developers the flexibility to work on different features or fixes simultaneously while keeping the code organized. Git is commonly used in software development to ensure code integrity, manage contributions, and facilitate collaboration across teams. It's widely adopted and forms the backbone of many modern development workflows, including those integrated with platforms like GitHub and Bitbucket.