Thirteen developer tracks — Java, Python, Software Design, DevOps, Game Dev, AI, Embedded & IoT, and more. 45 courses, one home. Free, self-contained courses with lessons, quizzes, code, and capstones. No accounts. Progress stays in your browser.
Independent tracks, not a sequence — jump to whichever one matches what you're working on right now.
Tracks are independent. These bundle several into the order you'd actually work through them for a specific goal.
The most direct path into a first networking support role — how networks work, hands-on hardware and troubleshooting, then the security fundamentals every help desk ticket eventually touches.
Zero to a job-ready Java backend developer — syntax and OOP fundamentals, then design patterns, then the Spring Boot framework most Java jobs actually run on.
The full 8-phase roadmap in order — fundamentals, the ecosystem, automation, a real FastAPI backend, AI integration, and professional testing/quality practices.
Containers first, then orchestration — the standard progression for anyone moving into a DevOps or platform engineering role.
Unity fundamentals through shipping a vertical slice, then a full library of production-ready particle effects to polish it with.
These pair directly with the Java track — one for when you're starting out, one for when you're going deep.
Visual, conversational, and genuinely fun. The best beginner Java book ever written — pairs with Pre-Course through Advanced OOP.
The definitive guide to lambdas, streams, Optional, concurrency, and modern Java features. Mirrors the second half of this curriculum exactly.
The flagship track — a structured 7-phase path from zero to job-ready with Spring Boot.
Logic, problem-solving, and computational thinking before you write a single line of syntax.
Master your IDE. Shortcuts, debugger, refactoring tools — the setup that separates fast devs from slow ones.
Version control from first commit to collaborative pull requests. Non-negotiable for any dev role.
Syntax, primitives, control flow, arrays, and methods. The complete foundation, not the abridged version.
The standard library in depth — collections, I/O, strings, and the classes you'll reach for every day.
Game Loop logic, for/while structures, and matrix traversal.
Master inventory systems and memory management.
Functional-style Java. Write expressive data pipelines with filter, map, reduce, and the full Stream API.
Eliminate NullPointerExceptions by design. Model absence explicitly rather than hoping nothing is null.
Threads, executors, CompletableFuture, and synchronization primitives. Write code that runs in parallel safely.
Standalone tracks in AI, Python, DevOps, game development, tooling, and security.
Master the fastest-growing skill in tech. 18 lessons from zero to job-ready — frameworks, chain-of-thought, RAG, system prompts, agents, and real-world examples across every major AI model.
A focused course on prompting Suno AI to nail a real genre and Claude to sharpen lyrics, copy, and creative scaffolding — plus a cross-training module comparing ChatGPT and Grok. Ends with a full concept-to-track capstone pipeline.
The honest answer to what you should learn in 2026 — and the full 8-phase path to act on it. Beginner to job-ready in ~19 weeks. Covers Pythonic thinking, the ecosystem, automation, FastAPI, AI integration with real LLM APIs, testing, and deploying a live product. One project that grows through every phase.
Built for developers who already code. Translation, not tutorials — cover Python's fundamentals in 1–2 weeks using your Java and C# foundation. 11 lessons, side-by-side Java comparisons, and a real phase project.
Stop writing Java with Python syntax. Dunder methods, decorators, properties, context managers, generators, itertools, error handling, type hints, and dataclasses — 11 deeply detailed lessons with working code at every step.
Libraries are half of Python's value. The packages that appear everywhere in real projects, covered in 10 modules.
Where Python pays dividends immediately — JSON/CSV/TOML/XML, pathlib, regex, web scraping with BeautifulSoup, task scheduling, and handling secrets the right way.
Job-relevant territory. FastAPI, PostgreSQL, authentication, and testing — 9 modules building a real backend.
The layer that makes everything else 10x more powerful — real LLM API integration across 9 modules.
The gap between hobbyist and professional Python. pytest, fixtures and mocking, Ruff, mypy, pre-commit hooks, structured logging, and profiling — 10 modules.
Images, containers, Dockerfiles, volumes, networking, and Compose — from zero to running a full stack in containers. The foundation every developer needs.
Multi-stage builds, container security, health checks, resource limits, CI/CD integration, logging, Docker Swarm, and the production patterns that separate learning from shipping.
Cluster architecture, Pods, Deployments, Services, ConfigMaps, Secrets, persistent storage, and Ingress — the full foundational K8s object model, built on your Docker knowledge.
Namespaces, RBAC, autoscaling, Jobs, Network Policies, StatefulSets, resource quotas, init containers, Helm, and a full CKAD exam prep lesson with timed practice scenarios and the exact kubectl shortcuts that win the exam.
17 modules from core concepts to a shipped vertical slice. Starts with what a GameObject, Component, and Prefab actually are, then covers 2D tilemaps, 3D physics, and a full 2.5D hybrid pipeline — 3D characters on a locked plane, exactly like Last Day on Earth. NavMesh AI with full state machines, UI, draw-call and memory optimization, and a capstone build you sideload to a real device.
13 effect modules — rain, snow, fire, water, bubbles, ocean, fireballs, magic, glow, bloom, dynamic lights, lightning, and explosions. Every effect built from scratch with exact property values, C# scripts, and a mobile optimization checklist.
15 modules from a blank install to a shipped, playable game — no engine, just Android Studio and Kotlin. Full setup walkthrough, a Kotlin crash course, the Activity lifecycle, a hand-built SurfaceView game loop, sprite animation, touch controls, AABB collision, a scrolling parallax camera, tilemap level design, sound, and a capstone that walks through building a complete side-scroller — menu, physics, enemies, coins, and game over — start to finish.
A full hardware-builder pathway: Raspberry Pi, Arduino, ESP32, Linux device services, sensors, motors, robotics, computer vision, and a final ship-ready embedded product. Course 01 is already live.
12 modules from breadboard basics to a full sensor/IoT capstone. Starts with safe GPIO wiring and add-ons before moving into Python, Linux, sensors, motors, networking, and computer vision.
15 modules covering how data actually moves, from a single cable to the entire internet. OSI/TCP-IP models, cabling, Ethernet/switching, IP addressing and subnetting, IPv6, routing, wireless, DHCP/DNS, transport protocols, security, troubleshooting tools, WAN/cloud networking, monitoring, and a capstone network build with certification and career guidance.
Randomized subnetting scenarios with instant feedback and a full worked solution every time — the hands-on drill companion to Module 5 of the networking course.
12 modules covering how markets, forex, and investing actually work — taught honestly, leading with the real disclosed loss statistics rather than hype. Market mechanics, forex fundamentals, order types, risk management as the centerpiece, technical and fundamental analysis with explicit limits, trading psychology, a plan/journal system, scam recognition, and a capstone requiring 50 journaled paper trades before ever considering real money.
Real order mechanics with zero real money — market orders, required stop loss and take profit, live position sizing risk feedback, and running P&L. The hands-on companion to the course's capstone module.
Install and configure every major IDE — VS Code, PyCharm, Visual Studio, IntelliJ, Xcode — and set up real environments and GUI development for Python, JavaScript, Java, C, and C++. Starts at the terminal/PATH basics before touching a single install.
A Complete Course for C, C++, and C#. From Toolchain Setup to Shipping GUI Applications. 5 Modules • 25 Lessons • Hands-On Projects.
The ultimate side-by-side cheatsheet for Bash and PowerShell, packed with real-world developer examples.
The ultimate side-by-side cheatsheet for Bash and PowerShell, packed with real-world developer examples.
WAPS prep for Air Force 3E051 Electrical Systems — a separate track built for military personnel, not part of the general dev curriculum above.
WAPS Study Guide — 200 questions covering electrical systems fundamentals for the Journeyman certification.
Focused WAPS study questions for Electrical Systems Module 7. Targeted prep for the specific exam section.
Rapid-fire flashcard review across all WAPS study guide topics — quiz yourself before exam day.