A browser-based Java Code Visualizer, write, compile & step through Java line-by-line with variable diff, execution path tracking, ~150 stdlib methods, Scanner input, ArrayList/HashMap/StringBuilder, dark/light themes, keyboard shortcuts, and 9 example programs. No backend required.
react javascript syntax-highlighting java github-pages interactive code-visualization vite java-interpreter step-debugger-debugger
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Updated
May 31, 2026 - JavaScript