AlgoCademy
Start learning free
FOR THE MOMENT YOU WANT IT TO CLICK

Start thinking like a
software engineer.

AI can write code. You can learn to understand it.
Build the problem-solving skills for your next coding interview—and beyond.

Start learning for free See a lesson in action
340+ step-by-step lessons 11 programming languages Free to start, no card needed
SEE HOW THE LEARNING HAPPENS.Inside AlgoCademy

REAL LESSONS. ONE STEP AT A TIME.

A little guidance.
A lot of thinking.

This is Two Sum in the Python course, as you see it in the app. Each step is a line or two of the solution, checked by the lesson’s tests before the next one appears.

Try the free lessons
AlgoCademy · Two Sum · Python
The lesson page: on the left the Two Sum problem and step 1, “Declare a hash table named indexOfValue”; on the right the editor, with the step’s number on line 3.

AlgoCademy students have landed roles at

Google, Amazon, Meta, Netflix, and UberIndividual student outcomes; your path will be your own.

THE WAY THROUGH IS UNDERSTANDING.

From “I’ve seen this”
to “I can solve this.”

Work through the reasoning, write the code, and get feedback on every step. Then solve it again without the steps.

01

Understand the problem.

Every lesson starts with the problem and a worked example. Watch the video solution when you want the idea explained.

02

Build it step by step.

Write a line or two at a time, on the line the step marks. Take a hint or reveal the code when you’re stuck.

03

Solve it on your own.

Turn Guided off and write the whole solution yourself. Every test runs, and the AI tutor can tell you what’s wrong.

A PATH YOU CAN ACTUALLY FOLLOW.

Build your foundation.
Then raise the bar.

Every course has the same three parts. Start from your first line of code, or go straight to interview practice.

PART 1 · ABOUT 150 LESSONS

Learn to code

Variables, conditions, loops, lists, dictionaries and functions. From your first line of code to solving problems on your own.

VariablesLoopsFunctions
PART 2 · ABOUT 40 LESSONS

Level up

Big O, strings, classes and object-oriented programming. Write bigger programs and know how fast they run.

Big OStringsClasses
PART 3 · ABOUT 150 LESSONS

Coding interviews

Twenty chapters of the patterns interviews ask about, from brute force and two pointers to trees, graphs and dynamic programming.

Two pointersHash tablesDynamic programming
About 340 lessons in every coursePython · JavaScript · Java · C++ · C# · TypeScript · Go · Kotlin · Scala · Swift · Rust
Explore the curriculum

LESS GUESSWORK. MORE PROGRESS.

A little guidance
goes a long way.

Especially when you’ve been staring at the same problem for an hour.

  • Pick up where you left off.

    AlgoCademy opens on your next lesson. Your progress is shared across all 11 languages, so you can switch any time.

  • Feedback you can act on.

    Errors point at your line in plain words, and a failed check shows the exact test you missed.

  • Help when you’re stuck.

    Hints, video solutions and an AI tutor that knows the lesson, the step you’re on and your code.

A SMALL SHIFT IN HOW YOU THINK

“Which solution do I remember?”

“What do I know?
What can I try?
Why would it work?”

Practice the process you can take
into your next problem.

THE MOMENT IT STARTS TO CLICK.

Real people.
New confidence.

From getting unstuck to taking the next career step. Here’s how students describe their experience.

Read more student stories
After going through all the lessons, I gained the necessary skills to perform well at my on-sites. I crushed even the DP problems, which were my biggest fear. And thanks to that I landed offers from Microsoft and Uber. Thank you AlgoCademy!
Cristina Radulescu Landed offers from Microsoft and Uber
AlgoCademy really helped me improve my problem solving skills and write incredibly clean code. I was worried it wouldn’t be done in time for my coding interviews, but the way the curriculum is structured made me progress very quickly. Thanks for your work!
Connor Holland Student story · Vanguard
Wow. I've been using AlgoCademy for a while and now I can finally solve coding questions on my own. This gave me the confidence I needed for my interviews, and guess what? I landed the offer at Samsung! You guys truly kick ass. High fives!
Ankit Kumar Landed an offer at Samsung
Hear Connor’s story His experience learning with AlgoCademy

MEET THE PEOPLE BEHIND THE LESSONS.

Engineers who love
the “aha” moment.

Learn from instructors whose experience spans software engineering, competitive programming, and years of helping others learn.

Andrei Chiriac

SOFTWARE ENGINEER & INSTRUCTOR

Andrei Chiriac

Andrei has worked at Amazon and Keystone and earned a bronze medal at the Central European Olympiad in Informatics. Since 2015, he has coached students for programming competitions and coding interviews.

LinkedIn YouTube
Mircea Dima

FOUNDER & SOFTWARE ENGINEER

Mircea Dima

Mircea has worked at Facebook, Adobe, Ubisoft, and startups. His engineering experience includes autocorrect, swipe typing, and music recommendations, alongside more than a decade of programming and interview coaching.

LinkedIn

YOU DON’T HAVE TO FIGURE IT ALL OUT ALONE.

Keep good company.

Get another perspective, ask a question, and learn alongside people working through the same challenges. Explore conversations and ideas from the AlgoCademy community.

Watch the podcast Explore the blog

A FEW QUESTIONS BEFORE YOU START.

Curiosity welcome.

Still wondering about something?
Ask the AlgoCademy team ↗

Is AlgoCademy right for beginners?

Yes. Part 1 of every course starts from your very first line of code and takes you to solving problems on your own. You don’t need a Computer Science degree.

Will this help me prepare for coding interviews?

Part 3 covers the patterns behind the questions top tech companies ask, from two pointers to dynamic programming. You practice reasoning through problems and writing clean solutions. Your results depend on your preparation and individual circumstances.

Which programming languages can I use?

Python, JavaScript, Java, C++, C#, TypeScript, Go, Kotlin, Scala, Swift and Rust. Every course has the same lessons, and your progress is shared between them.

How are interactive lessons different from videos?

You build the solution yourself, a line or two at a time, and the lesson’s tests check every step before the next one appears. The video solutions are there when you want the idea explained.

Is there an AI tutor?

Yes. The AI tutor sits next to every lesson and knows the problem, the step you’re on and your code, so you can ask why a check fails or what to try next. Plus and PRO members get unlimited tutor help.

Can I learn at my own pace?

Yes. Everything is available from day one, with no weekly drip. AlgoCademy remembers where you stopped, and you can go back to any lesson or step.

Can I use it on my phone?

Yes. Lessons work in your phone’s browser, though a keyboard makes writing code easier.

Can I try it before subscribing?

Yes. Part of every course is free, including a set of coding interview questions, and you don’t need a card. PRO yearly also starts with a 7-day free trial. See the plans.

ONE SMALL STEP TOWARD YOUR NEXT BIG THING.

Your next breakthrough
starts with a little practice.

Open a lesson. Try an idea. See what clicks.

Start learning for free 340+ lessons · 11 languages · Free to start