At Repl.it, a platform aiming to make programming more accessible, they are introducing a new feature that allows users to debug their Python 3 code directly from the browser without any setup time. This new debug pane provides common operations typically found in debuggers, such as stepping through code and evaluating expressions. The feature is currently in beta and has several improvements planned, including support for breakpoints, a scope pane, watch expressions, and more. Users can try it out with Repl.it's recursive factorial program and provide feedback or suggestions to help shape the future development of this feature.