What role does the Web IDE play in GitLab?

The Web IDE in GitLab serves as an advanced code editor embedded within the GitLab interface. It enables users to create and edit code directly within their browser, making the development process more streamlined and accessible. One of its key features is commit staging, which allows developers to select specific changes they want to commit, improving flexibility in managing their code modifications. This functionality enhances collaboration by allowing multiple developers to work on the same repository efficiently, as they can track changes, stage commits, and submit merge requests without needing to leave the GitLab platform.

The other options pertain to functionalities that are outside of the Web IDE's scope. While deploying applications, managing databases, and monitoring project security are important aspects of software development and project management, they are handled by different tools and features within GitLab, rather than by the Web IDE itself.