CodeWithHarry Free Courses 2026: Sigma Web Dev, Python 100 Days & DSA Guide

CodeWithHarry (Haris Ali Khan) is widely recognized as South Asia's premier computer science and software engineering educator. With over 6.2 million subscribers, Haris has revolutionized free tech education across India, Pakistan, and Bangladesh by delivering structured, high-volume video masterclasses in Hindi and Urdu. ### The Flagship Sigma Web Development Batch His most celebrated creation, the **Sigma Web Development Batch**, consists of 100+ comprehensive video lectures covering the entire full-stack web development lifecycle. Starting from fundamental HTML5 semantic elements and CSS3 Flexbox/Grid layouts, the course transitions into modern JavaScript (ES6+), DOM manipulation, asynchronous Promises, async/await, and Node.js backend development with Express and MongoDB. ### Complete Course Offerings & Full Syllabi: * **Sigma Web Dev Course (100+ Videos):** Complete MERN stack curriculum covering HTML5, CSS3, JavaScript ES6+, React.js, Node.js, Express.js, MongoDB, and Tailwind CSS with real portfolio project builds. * **100 Days of Code Python Masterclass:** Comprehensive Python 3 fundamentals, Object-Oriented Programming (OOP), file handling, Pygame, Tkinter GUI, Django web framework, and Data Science libraries (NumPy, Pandas). * **C & C++ Programming for Beginners:** Deep dive into memory addresses, pointers, dynamic memory allocation (malloc/calloc), data structures (LinkedLists, Stacks, Queues, Binary Trees), and algorithmic complexity. * **Java & Android App Development:** Object-oriented Java programming, Android Studio setup, XML UI layouts, activity lifecycles, and Firebase database integration. * **React.js & Next.js Production Guide:** Component architecture, hooks (useState, useEffect, useContext), server-side rendering (SSR), and API route integration. ### Teaching Philosophy & Source Code Availability Haris Ali Khan's teaching methodology emphasizes building real-world projects from scratch rather than passive code copying. Each video lecture is paired with downloadable source code, exercise assignments, and community Discord troubleshooting, preparing self-taught developers for entry-level engineering roles at top IT firms.