Trying to understand how a complex codebase works without a visual map to help you is an exercise in misery. But just diagrams themselves aren’t enough either. What if there was a way to get the best of both? Vizstack allows programmers to visualize code structure and execution for better understanding & simpler debugging in existing languages. It’s being built by Nikhil Bhattasali and Ryan Holmdahl from the United States. Just like the GUI made computers accessible to many more people, Vizstack plans on creating tools that reinvent programming.