Which tool in GitLab allows for real-time code editing and feedback?

The Web IDE in GitLab is designed specifically for real-time code editing and feedback. This tool provides an integrated environment where developers can write, edit, and debug code directly within their web browser. The Web IDE facilitates seamless collaboration by allowing multiple users to work on the same project simultaneously, offering instant feedback on changes made.

This real-time functionality enhances productivity as developers can quickly test and review code modifications without needing to switch between different applications or environments. The Web IDE also supports version control features, making it easier for teams to collaborate effectively and maintain a clear history of their work as they make changes.

In contrast, the other options serve different functions within GitLab. The Wiki is primarily for documentation, providing a space for project-related notes and information. The Project Board is focused on visualizing and managing tasks and issues within a project, allowing teams to track progress but not directly edit code. Commit History displays a record of all changes made to the repository but does not facilitate real-time editing. Therefore, the Web IDE is uniquely positioned to provide the capabilities of real-time code editing and feedback.