Overview Version History Q & A Rating & Review
🐍 Python Execution Visualizer
See Your Code. Understand Your Logic.
A high-performance VS Code extension that turns Python execution into an interactive visual experience. Perfect for students, educators, and developers debugging complex algorithms.
📺 Experience the Magic
Stop guessing what happens in the heap. Watch your code come to life in real-time.
🎬 Click Here to Watch the Full Video Tutorial/Demo
🎯 Why Python Visualizer?
Standard debuggers show you values in a tree. Python Visualizer shows you the connections .
Feature
🐍 Python Visualizer
🪟 Standard Debugger
Heap Memory Mapping ✅ Visual Linkages
❌ Plain Values
Object Mutations ✅ Auto-Highlighted
❌ Manual Check
Time-Travel ✅ Instant Scrubbing
⚠️ Single Step Only
Nested Structures ✅ Interactive Graphs
⚠️ Click-to-Expand
Education Focused ✅ High
❌ Low
✨ Power-User Features
Feature
Visual Icon
What it does
Live Tracing ⚡
Captures every frame, local variable, and heap object.
Interactive Heap 🕸️
Drag, zoom, and pan through a dynamic object graph.
Smart Diffing 🟢
Automatically highlights variables that modified their state.
Stack Inspection 🗂️
Visualize recursion with a clear, numbered call stack.
Theme Sync 🌓
Instantly adapts to your dark or light VS Code theme.
🛠️ Supported Python Features
Category
Supported?
Details
Basic Types ✅
Integers, Strings, Booleans, Floats
Collections ✅
Lists, Dictionaries, Sets, Tuples
OOP ✅
Classes, Instances, Class Variables
Functions ✅
Recursion, Closures, Nested Functions
Logic ✅
Conditionals, Loops (while, for)
Complex ⚠️
Deeply nested objects (up to depth 10)
🚀 Installation & Usage
1. Requirements
Python 3.8+ must be in your system PATH.VS Code 1.85+ .
2. Quick Start
Open any .py script.Run via the ▶ Visualizer icon in the top-right corner.Navigate using the control panel or keyboard.
⌨️ Productivity Shortcuts
Category
Key
Action
Playback SpacePlay / Pause (Auto-advance 500ms)
Step →Next Execution Step
Step ←Previous Execution Step
Jump HomeRestart from Step 1
Jump EndSkip to the Last Step
📜 License & Credit
Distributed under the MIT License . Created with ❤️ by MaheshG .
Found a bug or have a suggestion? Open an issue on GitHub!
"The best way to debug is to see it happen."
Elevate your Python journey with Python Visualizer.
