Eric

Eric

Building TraceLit — tracelit.dev

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Introducing TraceLit — visual algorithm tracer for LeetCode practice

Hey everyone! I just launched TraceLit on Product Hunt.

TraceLit lets you paste your Python code, enter a test case, and step through execution line by line while

watching linked lists and binary trees transform as interactive node graphs.

Built it because I kept losing track of pointers when dry-running on paper. Now I can see exactly where

Eric

11h ago

TraceLit - Paste your code. Watch your algorithm run step by step.

TraceLit helps you prepare for technical interviews by tracing your Python code line by line. Works with LeetCode-style problems — visualize linked lists and trees in real time, and use AI to pinpoint exactly where your logic breaks.