Free for personal projects · No install

See code come alive

Paste any function. Get a clean, interactive flowchart.
Step through execution like you're debugging with superpowers.

Start visualizing → ▷ View examples

Free for personal projects. No install.

Three steps to clarity

From code to flowchart in seconds — no configuration needed.

Paste code

Drop in Python, JS, or pseudocode. Language auto-detected.

—→

⎇

Parse & layout

We build the flowchart automatically from your AST.

—→

👣

Explore steps

Click any step to see state. Step forward or back.

Built for learners and builders

Whether you're studying, prepping, or shipping — this is your visual superpower.

🎓

CS Students

Turn lectures into interactive notes. Finally see recursion.

💼

Interview Prep

Walk through solutions out loud with a clear map.

👥

Code Review

Onboard teammates faster with a visual summary.

Interactive Canvas

Logic you can touch

Auto-generated flowcharts keep their shape as you edit. Pan, zoom, and step through loops without losing context.

Pan / zoom canvas
Step forward / back
Variable state panel

Try the playground →

Everything that matters

Every feature designed to make code logic effortless to understand.

🌐

Multi-language

Python, JavaScript, Java, C++, and more.

📐

Auto-layout

No manual positioning. The graph stays readable.

🐛

Step debugger

Walk through loops and branches line by line.

📤

Export & share

PNG, SVG, or a link you can send to a teammate.

💬

Annotations

Add notes to any node to explain intent.

🔒

Secure by default

Code processed in-memory. Nothing stored unless you save.

Support the Project

Scan to contribute — every amount helps keep Code-Visualizer free for everyone.

PayPal

majumdar82@okhdfcbank

Also via PayPal: majumdar82@gmail.com

Your support keeps this project alive and free for everyone ❤️