GitHub is a web-based platform for hosting Git repositories, enabling software developers to store code, collaborate with others, track issues, and manage projects. Launched in 2008 and acquired by Microsoft in 2018, GitHub hosts millions of repositories ranging from individual hobby projects to major government and corporate systems. Beyond code storage, GitHub provides collaboration features: pull requests allow code review before changes merge, issues track bugs and feature requests, and project boards organize work. Many government digital services use GitHub for development, and some publish code openly (open source) for transparency and community contribution. GitHub's public repositories are freely accessible, while private repositories require paid subscriptions for organizations. The platform has become central to modern software development workflows and serves as a professional portfolio for developers demonstrating their work.