What we make
Python Visualizer helps learners and reviewers follow code one step at a time. It surfaces the active line, local variables, function calls, return values, and printed output in one view.
Instead of treating a program as a black box, the visualizer makes its execution path concrete. This is especially useful when learning recursion, loops, conditionals, and the relationship between a function call and its return value.
How it works
Python code is executed in a browser worker using a WebAssembly-based Python runtime. The application records a bounded set of execution events and displays them as an interactive stack trace.
The tool is designed for short learning examples and debugging exercises. It is not a replacement for a production debugger, code review, or security testing process.
Who it is for
- Python learners who want to connect each line of code to its effect.
- Educators demonstrating functions, recursion, and program flow.
- Developers explaining a small code path during collaboration or review.