Channel
freeBrackeys - Game Dev
Unity game development tutorials. 2D/3D games, C# scripting, and publishing.
YouTube · beginner · 100h
Game development
61 courses · showing 4
Channel
freeBlender - 3D Modeling
Free 3D creation suite. Modeling, sculpting, animation, rendering, and game assets.
YouTube · beginner · 80h
Channel
freeSebastian Lague - Game Dev
Creative coding and game dev. Procedural generation, shaders, and simulations.
YouTube · intermediate · 40h
Channel
freeUnity 2D Game - Complete Course
Build a complete 2D platformer. Sprites, tilemaps, physics, enemies, UI, and publishing.
YouTube · beginner · 30h
Careers & interviews
59 courses · showing 4
Channel
freeCoding Interview Patterns
Master coding interviews. Common patterns, LeetCode strategies, and live problem solving.
YouTube · intermediate · 10h
Channel
freeHow to Write a Resume That Gets Interviews
Build a standout resume. Formatting, bullet points, quantifying impact, and ATS tips.
YouTube · beginner · 2h
Channel
freeEntrepreneurship & Startup Fundamentals
Launch a startup. Ideas, validation, MVP, customers, and fundraising basics.
YouTube · intermediate · 12h
Channel
freeLeadership Fundamentals
Lead effectively. Vision, trust, feedback, delegation, and motivating teams.
YouTube · intermediate · 4h
Mathematics
54 courses · showing 4
Playlist
freeEssence of Calculus
Calculus explained through beautiful animations. Derivatives, integrals, chain rule, and the heart of calculus.
YouTube · beginner
Playlist
freeEssence of Linear Algebra
Visual, geometric understanding of linear algebra. Vectors, matrices, transformations, and eigenvectors through stunning…
YouTube · intermediate
Playlist
freeNeural Networks (Visual)
How neural networks work, explained visually. Deep learning math, backpropagation, and transformers.
YouTube · intermediate
Online Course
freeCalculus I: Limits & Derivatives
Introduction to calculus. Limits, continuity, derivatives, and applications.
MIT OpenCourseWare · intermediate · 20h
Data science & ML
43 courses · showing 4
Online Course
freeMachine Learning by Andrew Ng
Classic ML course. Linear regression, SVMs, clustering, and best practices.
Coursera · intermediate · 60h
Online Course
freeDeep Learning Specialization
Master deep learning. Neural networks, CNNs, RNNs, and practical applications.
Coursera · advanced · 80h
Playlist
freeMachine Learning Course
ML explained clearly. Regression, classification, trees, clustering, and model evaluation.
YouTube · intermediate
Playlist
freeStatistics Fundamentals
Statistics made clear. Distributions, sampling, p-values, and statistical thinking explained simply.
YouTube · beginner
Mobile development
33 courses · showing 4
Online Course
free100 Days of SwiftUI
Free structured iOS course. SwiftUI projects, challenges, and real app building.
Hacking with Swift · beginner · 60h
Video Course
freeFlutter Course for Beginners
Build cross-platform apps with Flutter. Widgets, layouts, navigation, and state basics.
YouTube · beginner · 37h
Channel
freeJetpack Compose Crash Course
Modern Android UI with Jetpack Compose. Composables, state, layouts, and navigation.
YouTube · intermediate · 8h
Channel
freeAndroid App Architecture (MVVM)
Structure Android apps properly. MVVM, repositories, dependency injection, and clean code.
YouTube · advanced · 7h
Programming languages
33 courses · showing 4
Documentation
freeFree Programming Books (GitHub)
Massive collection of free programming books. 500+ languages and topics.
GitHub · beginner · 1000h
Documentation
freeAutomate the Boring Stuff with Python
Practical Python programming. File I/O, web scraping, email, and automation.
Python · beginner · 12h
Documentation
freeJavaScript.info
Modern JavaScript tutorial. Closures, promises, classes, and advanced patterns.
JavaScript.info · intermediate · 10h
Documentation
freeRust Programming Book
Learn Rust from the official book. Ownership, borrowing, lifetimes, and systems programming.
Rust · advanced · 12h
Design & 3D
32 courses · showing 4
Channel
free3D Modeling with Blender
Learn 3D modeling. Modeling, sculpting, texturing, lighting, rendering, and animation.
YouTube · beginner · 50h
Online Course
freeUI/UX Design Fundamentals
Master UI/UX design principles. User research, wireframing, prototyping, and design thinking.
Coursera · beginner · 20h
Channel
freeAdvanced CSS & Animations
Master CSS animations. Transitions, keyframes, scroll effects, and performance optimization.
YouTube · intermediate · 20h
Channel
freeFigma - Complete Design Course
Master Figma. Components, auto-layout, design systems, prototyping, and developer handoff.
YouTube · beginner · 25h
Cybersecurity
31 courses · showing 4
Documentation
freeWeb Application Security
Secure web apps. XSS, CSRF, SQL injection, authentication bypass, and web app firewalls.
OWASP · intermediate · 20h
Channel
freeReverse Engineering for Beginners
Learn reverse engineering. Assembly, disassembly, debugging, and malware reverse engineering.
YouTube · advanced · 30h
Channel
freeCybersecurity Career Roadmap
Plan your security career. Certifications, job roles, salary negotiation, and career paths.
YouTube · beginner · 5h
Online Course
freeCompTIA Security+ Prep
Prepare for Security+ certification. Threats, vulnerabilities, identity management, and cryptography.
Coursera · beginner · 40h
Programming foundations
28 courses · showing 4
Channel
freeCS50 - Harvard
Introduction to computer science. C, Python, SQL, web development.
YouTube · beginner · 70h
Channel
freeFireship - Code Tutorials
Fast-paced coding tutorials and tech explainers. Hot takes on frameworks and trends.
YouTube · intermediate · 100h
Online Course
freeJavaScript: Understanding the Weird Parts
Deep dive into JavaScript closures, prototypes, type coercion, and execution context.
Udemy · intermediate · 12h
Online Course
freeMIT OpenCourseWare - Algorithms
MIT 6.006 - Introduction to Algorithms. Sorting, graphs, dynamic programming, NP.
MIT OCW · advanced · 25h
Frontend
17 courses · showing 4
Documentation
freeMDN Web Docs
The definitive resource for web standards. HTML, CSS, JavaScript, HTTP, and Web APIs.
MDN · beginner · 10h
Documentation
freeThe Odin Project
Free full-stack curriculum covering HTML, CSS, JavaScript, Ruby on Rails, and Node.js.
The Odin Project · beginner · 20h
Documentation
freeReact Official Documentation
Comprehensive guide to React. Learn hooks, context, suspense, server components, and the latest React 19 features.
React · intermediate · 3h
Documentation
freeNext.js Documentation
Full-stack React framework. SSR, SSG, API routes, middleware, and deployment.
Next.js · intermediate · 5h
Web development
16 courses · showing 4
Channel
freeKevin Powell - CSS
The king of CSS tutorials. Responsive design, animations, modern layout.
YouTube · intermediate · 80h
Video Course
freeJavaScript Full Course for Beginners
Complete JavaScript. Variables, functions, arrays, DOM manipulation, events, async, and ES6+ features.
YouTube · beginner · 26h
Channel
freeWeb Dev Simplified - YouTube
Clear, concise web development tutorials. React, JavaScript, CSS, and career advice.
YouTube · beginner · 200h
Video Course
freeHTML & CSS Full Course for Beginners
Build websites from scratch. HTML structure, CSS styling, flexbox, grid, responsive design, and animations.
YouTube · beginner · 7h
Backend
10 courses · showing 4
Channel
freeHussein Nasser - Backend
Backend engineering. Networking, databases, system design, and performance.
YouTube · advanced · 120h
Documentation
freeFastAPI Documentation
Modern Python web framework for APIs. Type hints, async, automatic docs.
FastAPI · intermediate · 3h
Documentation
freeDjango Documentation
High-level Python web framework. ORM, admin, auth, and rapid development.
Django · intermediate · 6h
Channel
freeAmigoscode - Full Stack
Java, Spring Boot, React, and modern full-stack development tutorials.
YouTube · intermediate · 120h
DevOps
9 courses · showing 4
Channel
freeGit & GitHub - TechWorld with Nana
Complete Git and GitHub course. Branching, merging, PRs, and collaboration.
YouTube · beginner · 4h
Channel
freeNetworkChuck
IT and networking tutorials. Linux, Docker, networking, and cybersecurity.
YouTube · beginner · 150h
Online Course
freeDocker & Kubernetes: The Practical Guide
Complete Docker and K8s course. Containers, orchestration, and production deployment.
Udemy · intermediate · 25h
Online Course
freeDocker & Kubernetes Complete
Container orchestration. Docker, K8s, Helm charts, and cloud deployment.
Udemy · intermediate · 22h
Databases
8 courses · showing 4
Interactive
freeSQLBolt - Learn SQL
Interactive SQL exercises. SELECT, JOIN, aggregation, and schema design.
SQLBolt · beginner · 3h
Documentation
freeMongoDB University
Free courses on MongoDB. From basics to advanced aggregation and performance.
MongoDB · beginner · 8h
Online Course
freeMongoDB Complete Guide
NoSQL mastery. Documents, aggregation, indexing, and scaling with MongoDB Atlas.
Udemy · intermediate · 12h
Documentation
freePostgreSQL Tutorial
Advanced open-source database. SQL, joins, indexing, performance tuning, and extensions.
PostgreSQL · intermediate · 5h
Developer tools
5 courses · showing 4
Online Course
freeGit & GitHub Masterclass
Version control mastery. Branching, merging, pull requests, and GitHub Actions.
Udemy · beginner · 8h
Documentation
freeGit Documentation
Distributed version control system. Branching, merging, rebasing, and advanced workflows.
Git · beginner · 3h
Documentation
freeVite - Getting Started
Lightning-fast frontend build tool. HMR, plugins, and modern development.
Vite · beginner · 2h
Online Course
freeLinux Command Line
Master the terminal. Shell scripting, file management, permissions, and system administration.
Udemy · beginner · 10h
Cloud
4 courses
Online Course
freeAWS Cloud Practitioner
AWS fundamentals. EC2, S3, RDS, Lambda, and cloud architecture best practices.
Udemy · beginner · 16h
Documentation
freeGoogle Cloud Documentation
Google Cloud Platform services. Compute Engine, BigQuery, Cloud Functions, and more.
Google Cloud · intermediate · 12h
Documentation
freeAWS Documentation
Amazon Web Services official docs. EC2, S3, Lambda, DynamoDB, and 200+ services.
AWS · intermediate · 15h
Documentation
freeAzure Documentation
Microsoft Azure cloud services. VMs, App Service, Functions, Cosmos DB, and AI services.
Azure · intermediate · 12h
About this list
Each subject above shows its four highest-rated entries. The app has the rest, plus search and filters.
Where it comes from
Official documentation, university courseware and video series from 77 publishers. Nothing is re-hosted: every card links to the original, and the source is printed on it so you know before you click.
What it costs
Almost everything here opens on the free tier. The badge on each card is the plan it needs, and the paid tiers exist for the tools around the courses rather than the courses themselves.
In the app
Search by subject, difficulty, type or publisher, save anything to My Courses, and mark what you finish — the progress bar, XP and streak all come from that.
Pick one and start
A free account keeps your place, your notes and your streak. No card, no trial clock.