GitHub is a web-based Git repository hosting service that provides tools for collaborative software development.

Explanation:

• It offers features like pull requests, issue tracking, and CI/CD pipelines.
• Developers fork repositories to contribute to open-source projects.
• GitHub Actions help automate builds, tests, and deployments.

Example Workflow:

1. Fork a repository → Clone it locally.
2. Make changes → Commit & push to a new branch.
3. Open a pull request → Request code review & merge.

Advantages:

• Collaboration through teams, discussions, and issue tracking.
• Version control integration with Git.
• Supports open-source development.