GitHub is a web-based hosting service for Git repositories that offers all the functionality of Git with additional features like a graphical interface and collaboration tools. It provides both free and paid plans, with free accounts commonly used for open-source projects. With over 9 million users and 21.1 million repositories, GitHub is the largest code hosting service in the world.

1. GitHub

2. • GitHub is a web-based Git repository hosting service,
which offers all of the distributed revision
control and source code management (SCM)
functionality of Git as well as adding its own features.
Unlike Git, which is strictly a command-line tool,
GitHub provides a web-based graphical interface and
desktop as well as mobile integration. It also
provides access control and several collaboration
features such as wikis, task management, and bug
tracking and feature requests for every project.

3. • GitHub offers both plans for private repositories and
free accounts, which are usually used to host open-
source software projects. As of 2015, GitHub reports
having over 9 million users and over 21.1 million
repositories, making it the largest code hoster in the
world.

4. • Founded: February 8, 2008; 7 years ago.
• Founders: Tom Preston-Werner, Chris Wanstrath and
PJ Hyett
• CEO: Chris Wanstrath
• Key People and COO: PJ Hyett
• Employees: 272
• Slogan: "Build software better, together."