Better GitHub Co-Authors is a free Chrome extension designed to streamline the process of crediting co-authors in GitHub pull requests (PRs). By integrating seamlessly into the GitHub interface, it introduces an 'Add Co-authors' button that simplifies the addition of co-author credits for all participants involved in a PR. This tool not only acknowledges code contributors but also extends recognition to reviewers and commenters, ensuring a comprehensive crediting process.

The functionality of this extension revolves around its ability to automatically gather all participants from the current PR and generate appropriate 'Co-authored-by' comments. These comments are then incorporated into the commit message, making it easier for teams to maintain a clear record of contributions. By enhancing transparency and recognition within the development workflow, Better GitHub Co-Authors serves as a valuable tool for teams utilizing GitHub for collaborative projects.