DevVizs: Visualize how code and programming concepts work

Hey Product Hunt 👋 I’m the maker of Devvizs. I built Devvizs because many programming concepts are hard to understand just by reading code. Things like the JavaScript event loop, closures, system design patterns, or architecture flows often stay abstract. Devvizs turns these concepts into step-by-step interactive visualizations so you can actually watch execution happen — including the call stack, memory, and flow of logic. Right now the platform includes visualizers for: • JavaScript internals (event loop, closures, promises) • Design patterns • System design concepts • Real-world architectures Many more visualizations are coming soon. This is an early launch and I’d really love feedback from developers: • What concepts should we visualize next? • What would make this more useful for learning or debugging? Thanks for checking it out 🚀