Free & Paid Courses

CS50x — Introduction to Computer Science

by David Malan

Harvard's legendary intro to CS. Covers C, Python, SQL, algorithms, data structures. The single best first course for any CS student. Free to audit, certificate costs money.

CS50P — Introduction to Programming with Python

by David Malan

CS50's focused Python course. Covers functions, exceptions, libraries, unit tests, file I/O. Highly practical.

CS50 SQL — Introduction to Databases with SQL

by David Malan

Comprehensive SQL from Harvard. Covers relational databases, queries, indexes, optimization. Great starting point for data engineering.

CS50 Cybersecurity

by David Malan

Harvard's intro to cybersecurity. Covers securing accounts, web, phones, networks, and privacy. Great first step for security track.

CS50 AI with Python

by Brian Yu

Graph search, machine learning, neural networks, NLP. Harvard's AI course is practical and excellent for building foundational AI knowledge.

Introduction to CS and Programming Using Python

by John Guttag

MIT's intro programming course. Rigorous, deep, teaches computational thinking. Full lectures + problem sets. One of the best free CS resources in existence.

Nand to Tetris — Build a Modern Computer

Build a computer from NAND gates up to a working OS. The most mind-expanding CS course you can take. Completely free on the website.

OSSU — Open Source Computer Science Degree

A complete free CS curriculum equivalent to a university degree, curated from the best free online courses. Self-paced, community-supported.

Map of Computer Science

by Domain of Science

A 11-minute visual map of every area of computer science. Watch this on your first day. Perfect for understanding where everything fits.

Data Structures & Algorithms in Arabic

by Ahmed Sami

شرح Data Structures وAlgorithms بالعربي بطريقة واضحة ومنظمة. من أحسن المحتوى العربي في الـ DSA.

The Odin Project — Full Stack Path

Best free self-paced full stack curriculum. Covers HTML/CSS, JavaScript, React, Node.js, databases, and more. Project-based learning that builds a real portfolio.

Responsive Web Design Certification

freeCodeCamp's responsive web design cert. Build 5 projects, earn a free certificate. Covers HTML5, CSS3, Flexbox, Grid, accessibility.

JavaScript Algorithms and Data Structures

freeCodeCamp's JavaScript cert. Covers variables, arrays, OOP, functional programming, and algorithms. 300 hours of challenges + free certificate.

Full Stack Open

Deep dive into modern web development with React, Redux, Node.js, MongoDB, GraphQL, TypeScript. University-grade free course.

Next.js Learn — Official Tutorial

Official Next.js tutorial. Build a real dashboard app. Covers App Router, data fetching, authentication, server components, and deployment.

The Modern JavaScript Tutorial

The most complete and well-written JavaScript reference on the internet. From basics to advanced: closures, prototypes, async, DOM. Bookmark it forever.

Web Dev for Beginners — Microsoft

Microsoft's free 12-week web dev curriculum on GitHub. 24 lessons with quizzes, projects, and challenges. Covers HTML, CSS, JS basics.

React Official Docs — Learn React

The new React docs are genuinely the best way to learn React. Interactive examples, challenges, and deep explanations. Use this over any paid course.

TypeScript Handbook — Official

Official TypeScript documentation. Learn types, interfaces, generics, enums. Read this after you're comfortable with JavaScript.

Learn HTML in Arabic

by Elzero Web School

أشهر كورس HTML عربي. بيشرح كل تاج بالتفصيل بطريقة واضحة ومميزة. مثالي للمبتدئين.

Learn CSS in Arabic

by Elzero Web School

كورس CSS عربي شامل من Elzero. بيغطي Flexbox و Grid و Animations وكل حاجة تحتاجها.

JavaScript Bootcamp in Arabic

by Elzero Web School

أقوى كورس JavaScript بالعربي. بيغطي من الأساسيات لـ ES6+ وكل مفاهيم الـ OOP. المحتوى كتير لكن القيمة أكتر.

Learn React in Arabic

by Elzero Web School

كورس React بالعربي من Elzero. Components, Props, State, Hooks, Router.

Traversy Media — Web Dev Crash Courses

by Brad Traversy

Brad Traversy's channel has the best crash courses for every web technology. HTML, CSS, JS, React, Node, Express, Tailwind — all free, all excellent.

Meta Front-End Developer Certificate

Meta's official frontend certificate. Covers HTML, CSS, JS, React, UX, and interview prep. Recognized by employers. Audit free, financial aid available.

Meta Back-End Developer Certificate

Meta's backend certificate. Django, REST APIs, MySQL, version control, cloud hosting. Good structured path for Python backend.

Machine Learning Specialization

by Andrew Ng

The gold standard intro to ML. Andrew Ng covers supervised, unsupervised, and reinforcement learning. Audit for free, financial aid available for certificate.

Deep Learning Specialization

by Andrew Ng

Andrew Ng's deep learning series. CNNs, RNNs, optimization, hyperparameter tuning, attention models. The deep dive after the ML Specialization.

Practical Deep Learning for Coders

by Jeremy Howard

Top-down practical deep learning. Builds intuition before math. Uses PyTorch. Known for teaching state-of-the-art techniques with minimal prerequisites.

Hugging Face NLP Course

Official HuggingFace course on transformers, BERT, GPT, fine-tuning, and deployment. Essential for anyone doing NLP.

Machine Learning Crash Course

Google's intro to ML concepts. Concise, practical, covers neural networks, classification, regression. Good quick start.

Short Courses — LLMs, LangChain, MLOps

1–2 hour courses on cutting edge AI topics: LLMs, LangChain, RAG, agents, prompting, fine-tuning. Always up to date. Totally free.

Python & Data Science (Arabic)

by Codezilla

Python وعلم البيانات بالعربي من Codezilla. شرح واضح ومنظم لكل مبادئ Python وتطبيقاتها في Data Science.

PyTorch Official Tutorial

Official PyTorch tutorials from beginner to advanced. Tensors, autograd, neural networks, CNNs, NLP with PyTorch. Best reference for the framework.

Practical Machine Learning with Python

by sentdex

Harrison Kinsley's (sentdex) ML tutorials. Very practical: clustering, regression, SVM, neural networks with scikit-learn. Good supplement to theory courses.

TryHackMe — Pre-Security & SOC Level 1

The best starting point for cybersecurity. Guided hands-on labs in a browser. Pre-Security path teaches networking, Linux, and web fundamentals from scratch.

Web Security Academy

The definitive free resource for web application security. Covers SQL injection, XSS, SSRF, CSRF, and all OWASP Top 10. Made by Burp Suite creators.

Google Cybersecurity Certificate

Google's entry-level cybersecurity certificate. Covers security operations, networks, Linux, Python for automation. Great for SOC analyst path.

Hack The Box Academy

HTB Academy has high-quality structured modules on penetration testing, web attacks, network security, and more. Many modules are free.

Practical Ethical Hacking

by Heath Adams

The most recommended paid ethical hacking course. Covers networking, Linux, Python, Active Directory attacks, and full penetration testing methodology.

OverTheWire — Wargames

Free Linux + security wargames. Start with Bandit to learn Linux via hacking challenges. The most effective way to get comfortable with the command line.

CompTIA Security+ Full Course

by Professor Messer

Free comprehensive prep for CompTIA Security+ exam. Professor Messer is the gold standard for Security+ study. All videos free on his website.

Kaggle Learn — Python, ML, SQL, Deep Learning

Bite-sized free courses from Kaggle. Python, Pandas, ML, SQL, Deep Learning, NLP. Each course has hands-on exercises and a free certificate.

IBM Data Science Professional Certificate

10-course program covering Python, SQL, data visualization, ML, and data science tools. One of the most recognized data certificates.

Google Data Analytics Certificate

Google's data analytics certificate. Covers data cleaning, SQL, Tableau, R. Recognized by employers globally.

SQL Tutorial for Data Analysis

Hands-on SQL tutorial focused on data analysis. Runs queries in the browser on real data. Covers basic to advanced SQL including window functions.

dbt Learn — Free Analytics Engineering

Free official dbt courses from the creators. dbt Fundamentals, Jinja + Macros, Advanced Materializations. Essential for any data engineer.

Data Engineering Zoomcamp

Free 9-week data engineering bootcamp. Covers Docker, Terraform, BigQuery, Spark, Kafka, dbt, Airflow. Cohort-based with a free certificate on completion.

AWS Cloud Practitioner Full Course

Complete AWS Cloud Practitioner prep on YouTube. Covers all CLF-C02 exam topics. freeCodeCamp quality production.

Azure Fundamentals AZ-900

Microsoft's free learning path for Azure fundamentals. Prepares for AZ-900 exam. Interactive modules with hands-on labs.

Docker Tutorial — TechWorld with Nana

by TechWorld with Nana

Best free Docker tutorial. Covers containers, images, volumes, Docker Compose, networking. Nana's teaching style is exceptionally clear.

GitHub Skills — Interactive Courses

GitHub's official interactive courses. Learn GitHub Actions, security, coding with Copilot, and more. Earn badges in the process.

Kubernetes Tutorial for Beginners

by TechWorld with Nana

Best free Kubernetes intro. Covers pods, deployments, services, ingress, ConfigMaps, Helm. Nana is the clearest DevOps educator on YouTube.

Terraform Course for Beginners

Terraform fundamentals on freeCodeCamp. Covers infrastructure as code, providers, state management, modules. Hands-on with AWS.

Linux Command Line Full Course

Complete Linux command line course from freeCodeCamp. Navigation, file permissions, processes, bash scripting, networking commands. Essential for any developer.

Flutter Codelabs — Official

Official Flutter getting started guide. Build your first app with widgets, navigation, and state. Excellent official documentation.

Android Basics with Compose

Google's official Android development course with Jetpack Compose. Covers UI, navigation, data persistence, and networking with modern Android.

Flutter Course — Abdelaziz Ahmed (Arabic)

by Abdelaziz Ahmed

أقوى كورس Flutter بالعربي. بيغطي كل حاجة من أساسيات Dart لـ State Management وFirebase.

Flutter Crash Course

freeCodeCamp Flutter crash course. Build a functional app from scratch. Good quick overview of widgets, layout, and navigation.

Essence of Linear Algebra

by 3Blue1Brown

The most beautiful explanation of linear algebra you'll ever see. Visual, intuitive, and mind-changing. Essential for AI/ML. 3Blue1Brown's best work.

Essence of Calculus

by 3Blue1Brown

Visual introduction to calculus concepts. Derivatives, integrals, chain rule explained geometrically. Perfect refresher before starting ML.

Mathematics — Khan Academy

Comprehensive math from arithmetic to calculus and statistics. Free, with exercises. Perfect for plugging any gaps in your math foundation.

Linear Algebra — MIT 18.06 (Gilbert Strang)

by Gilbert Strang

MIT's legendary linear algebra course with Prof. Gilbert Strang. The depth you need for machine learning research and competitive programming.

Statistics for Data Science — Full Course

Full statistics course focused on data science applications. Probability, distributions, hypothesis testing, regression. Essential before diving into ML.

Discrete Mathematics — TrevTutor

by TrevTutor

Comprehensive discrete math playlist. Logic, sets, proofs, graph theory, combinatorics. Covers everything needed for algorithms and theory courses.

Anthropic API Fundamentals

Official Anthropic course covering the Claude SDK essentials: API keys, model parameters, multimodal prompts, streaming responses. Jupyter Notebook format — run the code as you learn.

Prompt Engineering Interactive Tutorial

Step-by-step guide to prompting techniques from Anthropic. Role prompting, XML tags, chain-of-thought, few-shot examples, avoiding hallucinations. Most practical prompt engineering resource available.

Real World Prompting

Apply prompting techniques to complex, production-level prompts. Builds directly on the prompt engineering tutorial. Covers real workflows, edge cases, and failure modes.

Tool Use with Claude

Everything you need to implement function calling and tool use with Claude. Define tools, handle tool results, build agents that use multiple tools. Official Anthropic course.

Claude 101

Anthropic's official intro to Claude. Covers core features, how LLMs work, and best practices for everyday use. Free certificate on completion. Good starting point before the API courses.

Claude Code in Action

21 lessons on Claude Code — Anthropic's agentic coding tool. Covers CLAUDE.md memory, slash commands, Hooks, GitHub integration, MCP servers, and the SDK. Made by the team that built it.

MCP Fundamentals — Build Servers & Clients

Build MCP (Model Context Protocol) servers and clients from scratch in Python. Covers the 3 core primitives — Tools, Resources, Prompts — and testing with MCP Inspector. MCP is the standard for connecting AI to external services.

Advanced MCP Patterns

Production MCP patterns: sampling (server-side AI calls), async notifications, file system access, and transport mechanisms (stdio, SSE, Streamable HTTP). Sequel to MCP Fundamentals.

Prompt Evaluations

Learn to write production-grade prompt evaluations to measure and improve your prompts systematically. Essential for anyone building serious AI applications with Claude.