Learn

1. 196 lessons · 8 modules · 74 h

   Foundations for beginners

   How computers and the internet work, the terminal, VS Code, Git and GitHub, and how to learn with AI tools.

   0/96 lessonsStart
2. 227 lessons · 2 modules · 20 h

   Flowcharts and complexity

   Pseudocode, flowcharts and how to measure the cost of code. Shared by every language.

   0/27 lessonsStart
3. 3135 lessons · 5 modules · 97 h

   Aptitude and reasoningPractice

   Quant, logical and verbal reasoning, data interpretation and numerical ability for placement tests.

   0/135 lessonsLocked
4. 4137 lessons · 15 modules · 107 h

   Web fundamentalsPractice

   HTML, CSS, responsive design, JavaScript, the DOM, async code and a TypeScript start.

   0/137 lessonsLocked
5. 5140 lessons · 14 modules · 109 h

   FrontendPractice

   React, hooks, routing, state management and Next.js.

   0/140 lessonsLocked
6. 6212 lessons · 17 modules · 162 h

   Backend and databasesPractice

   Node, Express, REST, authentication, MongoDB, complete SQL and ORMs.

   0/196 lessonsLocked
7. 792 lessons · 6 modules · 72 h

   MERN projectsPractice

   Five full-stack web projects, each with a spec and a step-by-step build guide.

   0/92 lessonsLocked
8. 8263 lessons · 18 modules · 199 h

   AI-integrated developmentPractice

   LLMs and AI APIs, prompting, tool use, LangChain, Ollama, Hugging Face, RAG, guardrails and evals, with three AI full-stack projects.

   0/247 lessonsLocked
9. 9108 lessons · 11 modules · 81 h

   DevOps and systemsPractice

   Docker, Kubernetes, AWS, WebRTC and CI/CD.

   0/108 lessonsLocked
10. 10230 lessons · 17 modules · 176 h

    Core CS and placement prepPractice

    OS, DBMS, networks, OOP interview questions, resume, interviews and intro to system design.

    0/159 lessonsLocked

Data structures and algorithms, by language

• Java420 lessons · 25 modules · 312 h

  DSA in JavaPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Java.

  0/0 lessonsLocked
• C++428 lessons · 25 modules · 322 h

  DSA in C++

  Programming from scratch, then data structures and algorithms through dynamic programming, all in C++.

  0/0 lessonsStart
• Python420 lessons · 25 modules · 312 h

  DSA in Python

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Python.

  0/0 lessonsStart
• JavaScript / TypeScript420 lessons · 25 modules · 312 h

  DSA in JavaScript / TypeScriptPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in JavaScript / TypeScript.

  0/0 lessonsLocked
• Go420 lessons · 25 modules · 313 h

  DSA in GoPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Go.

  0/0 lessonsLocked
• Rust420 lessons · 25 modules · 313 h

  DSA in RustPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Rust.

  0/0 lessonsLocked
• C#420 lessons · 25 modules · 313 h

  DSA in C#Practice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in C#.

  0/0 lessonsLocked
• Kotlin420 lessons · 25 modules · 312 h

  DSA in KotlinPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Kotlin.

  0/0 lessonsLocked
• Ruby422 lessons · 25 modules · 313 h

  DSA in RubyPractice

  Programming from scratch, then data structures and algorithms through dynamic programming, all in Ruby.

  0/0 lessonsLocked

Everything else

• 96lessons8 modules · 74 h

  Foundations for beginners

  How computers and the internet work, the terminal, VS Code, Git and GitHub, and how to learn with AI tools.

  0/96 lessonsStart
• 27lessons2 modules · 20 h

  Flowcharts and complexity

  Pseudocode, flowcharts and how to measure the cost of code. Shared by every language.

  0/27 lessonsStart
• 135lessons5 modules · 97 h

  Aptitude and reasoningPractice

  Quant, logical and verbal reasoning, data interpretation and numerical ability for placement tests.

  0/135 lessonsLocked
• 137lessons15 modules · 107 h

  Web fundamentalsPractice

  HTML, CSS, responsive design, JavaScript, the DOM, async code and a TypeScript start.

  0/137 lessonsLocked
• 140lessons14 modules · 109 h

  FrontendPractice

  React, hooks, routing, state management and Next.js.

  0/140 lessonsLocked
• 212lessons17 modules · 162 h

  Backend and databasesPractice

  Node, Express, REST, authentication, MongoDB, complete SQL and ORMs.

  0/196 lessonsLocked
• 92lessons6 modules · 72 h

  MERN projectsPractice

  Five full-stack web projects, each with a spec and a step-by-step build guide.

  0/92 lessonsLocked
• 263lessons18 modules · 199 h

  AI-integrated developmentPractice

  LLMs and AI APIs, prompting, tool use, LangChain, Ollama, Hugging Face, RAG, guardrails and evals, with three AI full-stack projects.

  0/247 lessonsLocked
• 108lessons11 modules · 81 h

  DevOps and systemsPractice

  Docker, Kubernetes, AWS, WebRTC and CI/CD.

  0/108 lessonsLocked
• 230lessons17 modules · 176 h

  Core CS and placement prepPractice

  OS, DBMS, networks, OOP interview questions, resume, interviews and intro to system design.

  0/159 lessonsLocked

Looking for a single module? Open the library.