AlgoLens
Algorithm Visualization Made Simple

See your code think

Paste any Python algorithm and watch it execute step by step. Variables, pointers, data structures — all visualized in real time. No installs. Runs entirely in your browser.

How it works

Paste Any Python

Drop your LeetCode solution or any Python algorithm. No setup, no installs.

Watch It Execute

See every variable change, pointer move, and recursion call unfold step by step.

Smart Visualizations

Arrays, trees, stacks, hashmaps — automatically detected and beautifully rendered.

Understand, Don't Memorize

Plain-English explanations for every step help you truly understand the algorithm.

Try an example

Pick a classic problem and see it visualized instantly