Code Visualizer for Java - Python Tutor-Style Execution Visualization Inside IntelliJ IDEA
Step through your Java code like Python Tutor — but right inside your IDE. Code Visualizer is a free IntelliJ IDEA plugin that lets you visualize code execution step-by-step, showing stack
frames, heap objects, pointer arrows, and variable changes in real time.
Features shown in this video:
Step-by-step forward/backward execution with slider scrubbing
Stack frame visualization with local variables
Heap object rendering (arrays, instances) with pointer arrows
Method call and constructor tracing
Return value display in frames
Exception line highlighting
How to use:
1. Open any Java file with a main method
2. Run → Visualize Execution (Ctrl+Shift+V)
3. Explore execution in the Code Visualizer tool window
Perfect for students learning Java, educators teaching programming concepts, or developers debugging complex logic visually.
Inspired by Philip Guo's Python Tutor (pythontutor.com).
🔗 Plugin: [https://plugins.jetbrains.com/plugin/...]
🔗 Source: [https://github.com/shubhamtyagi098/co...]
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