System Design Interview Prep:
A Beginner's Roadmap

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Introduction

If you’re trying to learn how to code, there’s no better time than now — and no better place to start than YouTube. It’s free, vast, and full of creators who break down complicated tech concepts into bite-sized, understandable lessons. But with thousands of channels out there, how do you choose the best ones?

Whether you’re a total beginner, switching careers, or just looking to brush up on some specific skills, this guide will walk you through the top YouTube channels that teach coding for free in 2024 — in a fun, human, and approachable way. 🧑‍💻✨

1. freeCodeCamp.org 🧠🌐

This one tops nearly every list — and for good reason. Their YouTube channel offers full courses on everything from HTML & CSS to Python, Machine Learning, and Data Science.

  • Why it’s great: It’s like getting a computer science degree… for free.

  • Best for: Beginners to advanced learners.

  • Popular videos:

    • 8-hour JavaScript course

    • Python for Beginners

    • Responsive Web Design full course

Bonus: The founder, Quincy Larson, also shares career advice and real-world coding tips.

🔗 freeCodeCamp YouTube

2. Programming with Mosh 🤓🖥️

Mosh Hamedani has a knack for explaining things clearly without making you feel overwhelmed.

  • Why it’s great: Focused, high-quality tutorials that don’t waste your time.

  • Best for: Developers at beginner or intermediate levels.

  • Popular topics:

    • React JS

    • Python

    • C#

He even offers career and freelancing tips sprinkled in his content.

🔗 Mosh’s Channel

3. Tech with Tim 🐍💡

This channel is an amazing hub for Python lovers. Tim teaches concepts like game development, automation, and algorithms in Python.

  • Why it’s great: Hands-on coding with real projects.

  • Best for: Anyone wanting to explore Python in creative ways.

  • Popular series:

    • Pygame tutorials

    • Machine Learning with Python

🔗 Tech with Tim

4. Traversy Media 🧑‍🏫🌍

Brad Traversy is a legend in the dev community. His videos cover both front-end and back-end development and are loved for their real-world project focus.

  • Why it’s great: Clear explanations and up-to-date tech.

  • Best for: Web developers, both new and seasoned.

  • Popular videos:

    • Full-Stack Dev Guide

    • Build a Responsive Portfolio Website

    • Node.js Crash Course

🔗 Traversy Media

5. The Net Ninja 🥷📚

With sleek design, great pacing, and structured playlists, this channel is a gem.

  • Why it’s great: Focuses on deep, topic-specific tutorials.

  • Best for: Learners who like structured curriculum.

  • Popular playlists:

    • JavaScript DOM

    • Firebase Auth

    • React & Next.js

🔗 The Net Ninja

6. CodeWithHarry (for Hindi Learners) 🇮🇳🗣️

If you’re more comfortable learning in Hindi, CodeWithHarry is perfect. He covers DSA, web dev, Python, and Java — all in an easy, approachable way.

  • Why it’s great: Regional language + detailed explanation.

  • Best for: Beginners in India.

  • Popular content:

    • C++ tutorials

    • Front-end development

🔗 CodeWithHarry

Tips for Learning from YouTube 🎯📱

  • Stick to one playlist at a time – jumping around wastes more time than you think.

  • Follow along with code – don’t just watch passively.

  • Build while you learn – take every concept and make something with it.

  • Engage in the comments – ask questions and interact.

🚀

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