Computer Science Education – 250+ Free CS Courses & Tutorials

Computer Science Education Directory

250+ free online CS courses and tutorials. Learn programming, web development, data science, machine learning, cybersecurity, databases, and software engineering from top universities and platforms.

We cover:

Audit options on Coursera are usually free for watching videos
Start with foundations before jumping to advanced topics
Practice with projects alongside theory for better retention
Join community forums and Discord servers for help
Build a portfolio by open-sourcing your learning projects
Follow roadmap.sh for structured learning paths

Favorites

No favorites yet. Tap ☆ on any game.

Programming Foundations

CS50x: Introduction to Computer Science — Legendary intro to CS (C, Python, SQL)
Python for Everybody — Dr. Chuck's complete Python sequence
CS61A: Structure and Interpretation of Computer Programs — Berkeley's Pythonic SICP
OSSU: Open Source CS Curriculum — Complete self-directed CS degree path
Teach Yourself Computer Science — Concise roadmap to core CS subjects
Intro CS with Java (Princeton) — Java, algorithms, data structures
A Tour of Go — Interactive Go language tour
The Rust Book — Comprehensive, hands-on Rust

Web Development

MDN: Learn Web Development — Canonical HTML/CSS/JS learning area
The Odin Project: Full Stack JavaScript — Project-based full stack path
freeCodeCamp: JavaScript Algorithms & Data Structures — Modern JS fundamentals
React: Learn React — Official guided React tutorial
Svelte: Interactive Tutorial — In-browser Svelte tutorial
Angular: Tutorial & Tour of Heroes — Official Angular learning path
Vue.js Guide — Official Vue fundamentals
Node.js: Learn — Official Node guides and tutorials
Django Official Tutorial — Build a polls app step by step
Flask Mega-Tutorial (Free edition) — Extensive Flask app series
Full Stack Open (University of Helsinki) — React, Node, GraphQL, TypeScript
Next.js Learn — Official Next.js tutorial
Remix: Learn — Build a Remix app from scratch
W3C Web Accessibility (WAI) Curriculum — Teach/learn web accessibility
Web Security for Developers (PortSwigger) — Security essentials for web devs
TypeScript Handbook — Official TypeScript guide
MDN: Web Performance — Core perf concepts and patterns

Data Science & Analytics

Kaggle Micro-Courses — Hands-on Python, ML, SQL, and more
pandas: 10-Minute Tutorials — Pandas essentials by examples
NumPy: Learn — NumPy roadmap and tutorials
Matplotlib Tutorials — Plotting fundamentals and recipes
Seaborn Tutorial (Official) — Statistical data visualization
SQLBolt — Interactive SQL lessons
Datacamp: Intro to Python (Free Chapter) — Free chapters; paid certs optional
Udacity: Intro to Data Analysis — Pandas, NumPy, visualization
Data Visualization with D3 (Observable) — Pragmatic D3 v7 tutorial
Hands-on Data Viz (Open Book) — Practical viz with open tools

Machine Learning & AI

fast.ai: Practical Deep Learning — Top-down DL with real projects
Stanford CS229: Machine Learning — Foundational theory and notes
Stanford CS231n: CNNs for Visual Recognition — Deep learning for computer vision
Stanford CS224n: NLP with Deep Learning — Deep NLP and transformers
MIT 6.S191: Intro to Deep Learning — Intensive DL bootcamp
PyTorch Tutorials — Official PyTorch learn-by-doing
TensorFlow: Keras & TF Guides — TF/Keras official learning hub
DeepLearning.AI Short Courses — Bite-sized, timely AI topics
AutoML & MLOps (Made With ML) — End-to-end ML engineering
Google GenAI Learning Path — GenAI concepts and hands-on labs
Stanford CS330: Deep Multi-Task & Meta-Learning — Advanced DL course

DevOps, Cloud & SRE

Docker: Getting Started — Official Docker hands-on
Kubernetes: Tutorials — kubectl basics to concepts
GitLab CI/CD: Quick Start — Pipelines from zero
HashiCorp Learn: Terraform — IaC tutorials and labs
Ansible: Getting Started — Automation with Ansible
Helm: Quickstart — Package management for K8s
Prometheus: Getting Started — Monitoring fundamentals
Grafana Tutorials — Dashboards and observability
Google Cloud Skills Boost (Free Quests) — Hands-on labs and quests
AWS Educate / Skill Builder Free — AWS free learning paths
Microsoft Learn — Azure, DevOps, and more
OpenTelemetry: Docs & Tutorials — Telemetry for cloud-native
NGINX: Beginner’s Guide — Web server fundamentals
Istio: Getting Started — Service mesh basics
Argo CD: Getting Started — GitOps for Kubernetes
Google SRE Book (Free Online) — SRE principles and practices

Cybersecurity & Ethical Hacking

PortSwigger Web Security Academy — Best-in-class web vulns labs
TryHackMe (Free Rooms) — Guided, browser-based labs
Hack The Box Academy (Free Modules) — Hands-on cyber labs
picoCTF — Beginner-friendly CTF
OverTheWire Wargames — Linux and security challenges
OpenSecurityTraining2 — Deep low-level security courses
MITRE ATT&CK Training — Adversary tactics & techniques
CryptoHack — Applied cryptography challenges
Blue Team Labs (Free labs) — Defensive security exercises
WebGoat — Deliberately insecure web app
Cisco Skills For All: Intro to Cybersecurity — Free self-paced cybersecurity intro
Flaws.Cloud — AWS security misconfig CTF
PentesterLab (Free badges) — Selected free web hacking labs
Malware Traffic Analysis Exercises — PCAP analysis practice

Databases & Data Engineering

CMU 15-445/645: Intro to Database Systems — Top-tier DBMS internals
SQL Murder Mystery — Solve a crime using SQL
MongoDB University (Free Courses) — MongoDB fundamentals to advanced
PostgreSQL Tutorial — Postgres from basics to advanced
Stanford CS145: Data Management & Databases — Relational design & SQL
BigQuery Quickstarts — Cloud SQL analytics
Apache Spark: Quick Start — RDD/DataFrame basics
Airflow: Tutorial — Workflow orchestration 101
Kafka: Getting Started — Distributed streaming basics
SQLite Tutorial — Lightweight SQL engine guide
Oracle LiveSQL (Free workspace) — Interactive SQL in the browser
Snowflake University (Free courses) — Cloud data platform basics
Elastic: Getting Started — Search engine fundamentals
Neo4j Graph Academy (Free) — Graph DB concepts & Cypher

Mobile, Cross‑Platform & Frontend Frameworks

Android Basics with Kotlin — Official Android beginner path
Jetpack Compose Basics — Modern Android UI toolkit
Apple Developer Tutorials (Swift/SwiftUI) — Swift & SwiftUI official
Flutter Codelabs — Hands-on Flutter labs
React Native Docs: Learn — Get started with React Native
Ionic Framework Docs — Hybrid mobile/web apps
Xamarin/.NET MAUI Docs — .NET cross‑platform apps
PWA Training (web.dev) — Progressive Web Apps course
Capacitor Docs — Web-to-native bridge
Expo Tutorials — React Native dev with Expo
Kivy (Python) Docs — Python UI/mobile framework
NativeScript Docs — Native mobile with TS/JS
Swift Playgrounds (Learn to Code) — Interactive Swift learning
Kotlin Koans — Interactive Kotlin exercises
Dart Language Tour — Essential Dart for Flutter
SwiftUI Tutorials by Apple — Build iOS interfaces

Embedded, Systems & Hardware

Nand2Tetris (Part 1) — Build a computer from first principles
CS162: Operating Systems (Berkeley) — OS design and implementation
MIT 6.5840/6.824: Distributed Systems — Raft, MapReduce, etc.
The Linux Kernel documentation — Kernel internals reference
Raspberry Pi: Getting Started — Hardware & Linux projects
Arduino: Learn — Microcontroller basics & projects
ESP-IDF: Get Started (ESP32) — IoT dev with ESP32
Buildroot Manual (Hands-on) — Embedded Linux builds
Xv6: A Simple Unix-like OS — Read and modify a small OS
FreeRTOS Docs & Quick Start — RTOS fundamentals
Computer Systems: CS:APP (3e) Labs — Systems programming labs
Compilers (Stanford CS143) — Build a compiler
Berkeley CS61C: Great Ideas in Computer Architecture — Architecture & parallelism
MIT 6.1810: Computer Systems Engineering — End-to-end systems design

Software Engineering Practices

Pro Git (Free Book) — Comprehensive Git guide
Learn Git Branching (Interactive) — Visual Git practice
Refactoring.Guru (Essentials) — Design patterns & refactoring
Google Testing Blog & Guides — Unit, integration, and more
Exercism (Tracks & Mentoring) — Practice exercises with feedback
Frontend Mentor (Free challenges) — Build real UI layouts
Roadmap.sh — Role-based learning paths
Linux Journey — Linux basics to advanced
The Bash Guide — Shell scripting fundamentals
RegexOne — Interactive regex tutorials
Docs for Developers (Write the Docs) — Documentation best practices

Math for CS & Algorithms

MIT 6.006: Intro to Algorithms — Algorithmic problem solving
e-maxx.ru (CP-Algorithms) — Competitive programming handbook
Project Euler — Math + programming challenges
3Blue1Brown: Essence of Linear Algebra — Geometric intuition for LA
VisuAlgo — Visualize data structures
Skiena: The Algorithm Design Manual resources — Heuristics and case studies
Open Data Structures — Free textbook with code
Khan Academy: Probability & Statistics — Stats refreshers
USACO Guide (Free) — Progressive algorithms curriculum
UC Berkeley CS170: Efficient Algorithms — Design and analysis

Game Development & Graphics

Unity Learn (Free) — Official Unity courses
Unreal Online Learning — Epic's official learning hub
Scratchapixel 2.0 — Rendering from scratch
LearnOpenGL — Modern OpenGL in C++
Gaffer on Games (Fix Your Timestep) — Game engineering articles
Udacity: VR Developer (Free Lessons) — VR basics
Kenney Game Assets (Free) — Assets to build practice games
Real-Time Rendering (RTR blog) — Industry insights & resources

LLMs, Prompting & AI Applications

DeepLearning.AI: ChatGPT Prompt Engineering — Short courses incl. prompting
LangChain: Get Started — Build LLM apps with LangChain
Vector Databases 101 (Pinecone) — Embeddings, RAG patterns
OpenAI Cookbook — Practical recipes & patterns
Haystack Tutorials (deepset) — RAG pipelines in Python
Anthropic: Prompt Engineering Guide — Prompt patterns and tips
Guardrails AI (RAG Safety) — Validation & safety for LLMs
Arize Phoenix (Open Source) Docs — LLM evals & observability
Weights & Biases: MLOps Courses (Free) — Experiment tracking, LLM evals
Instructor (Structured Outputs) — LLM JSON schemas & tooling

CLI, Linux & Networking

Cisco Skills For All: Networking Basics — Intro networking & security
iproute2 & netfilter guides — Linux networking fundamentals
Wireshark Labs — Protocol analysis exercises
PowerShell 101 (MS Learn) — Windows automation basics
Zed Shaw: Learn C the Hard Way (free drafts) — C systems programming drills
Beej’s Guide to Network Programming — Sockets programming classic
Regex Golf & Exercises — Fun regex practice
TLA+ Hyperbook — Formal methods for systems
GNU Debugger (GDB) Guide — Debugging native code
BPF & eBPF Tutorial (Cilium) — Programmable Linux kernel

Language‑Specific Paths

Python: Automate the Boring Stuff — Practical tasks & projects
Java: MOOC.fi Java Programming — University of Helsinki Java course
Go: Tour of Go — Official interactive tour
Rust: The Book — Ownership, lifetimes, concurrency
Ruby: Rails Guides – Getting Started — Ruby + Rails basics
PHP: SymfonyCasts (Free tracks) — Symfony fundamentals
TypeScript: Handbook — Types and tooling
Elixir School — Elixir language lessons
Haskell: Haskell Programming from First Principles (free excerpts) — FP foundations (sample)
Julia Academy (Free) — Julia language courses
Shell: Bash Guide — Scripting essentials

📣 Sponsored

Your Learning Platform Here — Reach students learning computer science
Your Course Here — Showcase your educational content
Your Bootcamp Here — Connect with aspiring developers
Your Tutorial Site Here — Promote your free CS resources

💬 Support This Project

Subscribe to Newsletter — Get updates on new courses and resources