30 days · 30 topics · 0 boring textbooks
DSA, but make it
addictive.
A 30-day, click-along crash course in Data Structures & Algorithms. Visual, interactive, and built for humans — not for the textbook gods.
psst — click the GIF
LIVE DEMO
Stop reading. Start clicking.
Every page on this site looks like this. Tap, type, break things, undo, repeat. That’s how concepts actually stick.
POP QUIZ
Think you already know this stuff?
Prove it. One question, no signup, no judgement.
Why this isn’t another snore-fest tutorial
We took the boring parts of DSA and replaced them with things you can actually touch.
See it, don’t memorize it
Animated array shuffles. Step-by-step algorithm runners. Memory diagrams you can hover. Concepts that hide in text suddenly become obvious.
30 minutes, 30 days
Each day is one sit-down. No 4-hour marathons. No “come back tomorrow when you’re fresh.” Just one topic, one walkthrough, one set of problems.
Interview-shaped
The patterns FAANG actually asks. Solutions in C++, Python, and Java. Difficulty badges so you know what you’re getting into.
Memes included
Click-to-reveal GIFs, occasional dad jokes, zero corporate vibes. Learning that doesn’t feel like homework.
No paywall, no signup
Open the page, read it, close the tab. Bookmark a problem. Skip a day. It’s a book, not a SaaS.
Built for tinkerers
Every visualization is a live React component. Want to see what happens with a weird input? Type it in. The site bends to your curiosity.
THE ROADMAP
Your next 30 days
A curated path. Each tile is a self-contained day.
live · grey = coming soon
What a typical day looks like
Same rhythm every time. Predictable. Bingeable.
A GIF, an analogy, a “wait, that’s it?” moment.
Interactive widgets that step through the operation.
C++, Python, Java tabs. Pick your weapon.
Curated problems with reveal-on-click solutions.
DSA, served as a piece of cake.
Day 1 starts wherever you are right now. No setup, no signup, no pressure. Just 30 days and a curious brain.
Begin Day 1 →
Free · Open source · No “premium tier” gimmicks