Explore In-Demand Skills
Choose a learning path designed to take you from Hello World to Industry Ready.
Python Programming
The most versatile language for beginners. Start your coding journey here.
Web Development
Build modern websites with HTML, CSS, JavaScript, and React.
Full-Stack Dev
Master both frontend and backend to build complete applications.
Data Analytics
Turn data into insights with SQL, Pandas, and Visualization tools.
AI & Automation
Learn to build smart bots and automate boring tasks.
Code Smarter with Powerful Tools
Everything you need to practice, debug, and learn faster — completely FREE.
Online Code Runner
Run Python, JS, and SQL directly in your browser.
Error Explainer
Paste your error and get simple explanations.
Practice Questions
Generate quizzes to test your knowledge.
SQL Playground
Practice queries without installing anything.
Cheat Sheets
Quick references for syntax and commands.
EXPLORE ALL TOOLS
See what else we have built.
WHY LEARN AT
HELLO WORLD?
Hello World Classes (HWC) is not just another ed-tech platform. We are India's premier destination for breaking into tech. Founded with the mission to democratize education, we provide comprehensive free courses on Python, Web Development, C++, and Data Structures. Whether you are a college student looking for placement preparation or a beginner taking your first steps in coding, HWC offers crystal-clear explanations in Hindi and English. Our goal is simple: To turn "Hello World" into a high-paying career.
Simple Explanations
No jargon. We explain complex topics in plain English (and Hindi/Hinglish).
Career Focused
Learn what companies actually ask for in interviews.
Hindi-Friendly
Content designed for Indian students to learn comfortably.
Free & Affordable
High-quality education shouldn't cost a fortune.