'Git' is an open-source distributed version control system, created by Linus Torvalds in 2005, ideal for handling projects of any size efficiently. Its branching capabilities allow multiple developers to concurrently work on a project without disrupting each other.

Git ensures strong data integrity and supports non-linear development, excelling in managing large projects. It uses 'commit' objects to store references to files, facilitating easy switching between different codebase versions.

A notable strength of Git is its decentralized nature, where every developer's work copy is a full-fledged repository with a comprehensive change history. This contrasts with centralized systems, offering improved collaboration and quicker workflows.

Git's robustness in source code management and adaptability in various workflows have made it a standard in both open-source and commercial software development.