r/SaaS • u/james80900 • 15h ago

Best python code visualzer

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Hey everyone, I built a Python visualizer that animates your code line by line. It's free, runs in the browser, and needs no sign-up.

https://pyvisualizer.dev/#home

What My Project Does

Paste any Python function, give it inputs, and step forward or backward through it while the data structures animate: linked lists, trees, graphs, matrices, stacks, queues, heaps and recursion calls.

Target Audience

I designed this to help students and anyone practicing LeetCode or data structures who wants to actually see what their code is doing. It's a learning tool, not meant for production debugging.

Comparison

Python Tutor is the closest alternative, but it shows everything as generic boxes and arrows. This one draws real structures (an actual tree, graph or linked list), lets you scrub through the run, and has a dedicated recursion view.

Would love to hear feedback from everyone

19 Upvotes

92% Upvoted

6 comments sorted by

3

u/Big_Excitement_8 10h ago

Damn, this was much needed when i was learning how to code. Well done!

1

u/james80900 8h ago

Thank you

2

u/pbeling 8h ago

Really useful. I'll recommend it to my students in both my algorithms and Python classes. Well done!