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

prev, curr, head point at every step.

Key features:

- Visual linked list & binary tree tracing with pointer labels

- Step forward/backward through every line of execution

- AI debugger that pinpoints the buggy line

- 150+ NeetCode problems pre-loaded

Try it: tracelit.dev

Would love to hear what you think — what problems do you wish you could visualize?