Learn how to start building, shipping, and maintaining software with GitHub. Explore our products, sign up for an account, and connect with the world's largest development community. Start your journey Brand new to GitHub? Learn the basics here. Learn to code with GitHub Copilot Learn how GitHub and Copilot can help you build programming skills, write better code, and ship secure projects. At the heart of GitHub is an open-source version control system (VCS) called Git. Git is responsible for everything GitHub-related that happens locally on your computer. Learn about the version control system, Git, and how it works with GitHub. About Git rebase The git rebase command allows you to easily change a series of commits, modifying the history of your repository. You can reorder, edit, or squash commits together. About Git subtree merges If you need to manage multiple projects within a single repository, you can use a subtree merge to handle all the references. About GitHub Advanced Security

GitHub makes extra security features available to customers who purchase GitHub Code Security or GitHub Secret Protection. Some features are enabled for public repositories by default. About GitHub Certifications Earn a GitHub Certification to showcase your expertise in GitHub technologies and workflows. About remote repositories GitHub's collaborative approach to development depends on publishing commits from your local repository to GitHub for other people to view, fetch, and update. About saved replies You can use a saved reply to respond to an issue or pull request. About tasklists You can use tasklists to break the work for an issue or pull request into smaller tasks, then track the full set of work to completion. About versions of GitHub Docs You can read documentation that reflects the GitHub product you're currently using.