Git Repositories: Unlimited public/private repositories with branching, forking, and merging. Pull Requests (PRs): Code review, discussions, and inline comments. GitHub Actions: Automate workflows, build, test, and deploy code directly. GitHub Codespaces: Instant, cloud-hosted development environments. GitHub Copilot: AI pair programmer that suggests code and functions. Git LFS: File storage for large assets. Issues: Track bugs, enhancements, and tasks. Projects: Kanban-style boards and roadmaps to plan work.