Codedive - Stop reading about algorithms. Watch them execute.
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The free LeetCode visualizer. Step through 200+ problems line by line watch arrays, trees, graphs, and DP animate in real time with every variable visible. No login required.
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Maker
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Hey PH! 👋 I'm Rajan, the maker of codedive.
The idea came from a frustrating night staring at a Two Sum solution that I could read but not truly understand. I knew what the code said, I had no idea what it was doing.
So I built the tool I wish I had. codedive lets you step through 207+ LeetCode problems line by line, watching arrays shift, pointers move, and graphs connect in real time with every variable visible at every step.
No login. No setup. Just pick a problem and watch it move.
I built this solo over the past few months. Would love to hear which problems or data structures you'd want visualised next and any feedback on the experience. AMA! 🙏
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