Free and affordable courses, certifications, practice labs, and career resources for programming, IT, cloud, and cybersecurity
Free Learning Platforms
(15)
3,000+ hours of free curriculum - HTML, CSS, JS, Python, data science, ML with certifications
Full-stack web dev curriculum - JavaScript or Ruby paths, project-based, 718K Discord community
Harvard's legendary intro to CS - C, Python, SQL, JS, free certificate, 2026 edition live
Visual coding courses - JavaScript, HTML/CSS, SQL, Python, great for absolute beginners
2,500+ free MIT courses - CS, algorithms, AI, cryptography with full lectures and assignments
Interactive coding lessons with instant feedback - Python, JS, Java, free tier + Pro plan
Free learning paths for C#, Python, Azure, .NET - browser sandboxes, free exam vouchers at events
1,500+ free resources, 120+ courses - Android, Firebase, Cloud, AI with free badges
Learn Programming
Python - free online book (3rd edition), practical automation, 500K+ copies sold
Python - Dr. Chuck's beloved beginner course on Coursera, free to audit
Python - high-quality tutorials from basics to advanced, many free articles and cheat sheets
Python - Harvard's Intro to Programming with Python, 10 weeks of free material
JavaScript - The Modern JavaScript Tutorial, basics through advanced with examples and tasks
JavaScript/HTML/CSS - the definitive reference from Mozilla, comprehensive tutorials and guides
JavaScript - free online book (4th ed, 2024), deep dive with exercises and projects
Rust - the official comprehensive guide, covers ownership to concurrency, the "bible" for Rust
Rust - multi-day course by Google's Android team, covers basics through async and FFI
Go - hands-on intro using annotated example programs, fundamentals through goroutines
Go - official interactive tutorial, run Go in your browser with exercises
Go - learn through TDD, write tests first then learn features, MIT licensed
Python - interactive browser-based tutorial for fast learning, write and run code instantly
CSS - learn Flexbox layout through a frog-positioning game, 24 levels
CSS - learn Grid layout by watering a garden, 28 levels
Coding Challenges
Challenges across algorithms, SQL, 30+ languages - skills certifications for your profile
974+ math/computational puzzles - requires clever algorithms, solve in any language, since 2001
Annual December coding challenge - 12 puzzles, any language, used for interview prep and fun
Learn Python and JavaScript through an RPG-style game - loops, conditionals, functions
Competitive CSS challenges - replicate target images with minimal CSS code
Cisco Certifications
CCNA - community #1 pick, complete 60+ video course, Anki flashcards, Packet Tracer labs
CCNA/CCNP - CCIE #11023, free YouTube videos, free practice exams, GNS3 tutorials
CCNA - beginner-friendly style, makes complex topics fun and accessible
Deep dives into subnetting, ARP, routing - among the best networking explanations online
Best paid CCNA course for the price - 38+ hours, 300+ pages of labs, ~$15 on sale
Free Cisco network simulator - v9.0, built-in tutorials, sufficient for CCNA
Community #1 practice exam - closest to real exam, "no pass no pay" guarantee
Wendell Odom's OCG Library 2nd Ed - the only Cisco-approved self-study resource, 800+ questions
CCNA/CCNP/CCIE - $59/mo full library access, Keith Barker (double CCIE), 7-day free trial
CCNP/CCIE - 700+ lessons, affordable subscription, active forum with CCIE instructor
Official community - study groups, exam topics, free materials, Cisco experts participate
Free text-based CCNA tutorials covering all exam topics, actively maintained
CompTIA Certifications
The gold standard for free CompTIA training - full A+, Network+, Security+ video courses
CompTIA A+ 220-1201 - complete free video course, updated with 2026 study groups
CompTIA Security+ SY0-701 - 121 videos, 15 hours, completely free
CompTIA Network+ N10-009 - 87 videos, 13 hours, completely free
CompTIA A+ Core 1 & Core 2 - 2.8M+ enrollments, CISSP instructor, ~$15 on sale
CompTIA Security+ SY0-701 - top-rated paid course with practice exams included
CompTIA A+ by the industry legend - 1M+ enrollments, engaging teaching style
CompTIA Security+ SY0-701 by Total Seminars - thorough coverage, great visuals
Official interactive lessons and videos aligned directly to exam objectives
Official adaptive practice questions that identify knowledge gaps
Official virtual hands-on labs - practice real scenarios in a browser
Interactive career path planner - shows salaries, job postings, cert alignment by role
Cloud Certifications
AWS - 600+ free courses, 10 free hands-on labs, Cloud Quest 3D learning game
AWS - 100+ services free tier, up to $200 credits for new accounts, real cloud practice
AWS - deep detailed courses, excellent diagrams, lifetime access, SAA/SAP/all certs
AWS - #1 instructor on Udemy, 1.5M+ students, concise and direct, all cert levels
AWS - best practice exams available, detailed explanations, free study path notes
AWS/Azure/GCP - formerly A Cloud Guru, cloud training with hands-on labs
Azure - completely free official learning paths, browser sandboxes, aligned to exams
Azure - free official practice tests from Microsoft for AZ-900, AZ-104, and more
Azure - 11x Microsoft MVP, 952+ videos, ad-free, AZ-900/104/305/500 full courses
GCP - official training with hands-on labs on real infrastructure, 35 free monthly credits
GCP - certification overview, exam guides, preparation resources from Google
Cybersecurity Training
Realistic hacking challenges - HTB Academy structured courses, Pwnbox browser Kali
Structured cybersecurity courses - Tier 0 (beginner) through Tier IV (expert), 30 free cubes
Free SSH wargames - the recommended starting point for learning Linux command line and security
All wargames - Bandit, Natas (web sec), Leviathan, and more, no account needed
Blue team training - 150+ labs for SOC analysts, threat hunting, DFIR, browser-based labs
Free scholarship-based security training from SANS, intro to OS security
Free hands-on security workshops from the industry's top training org
Defensive security challenges - SOC, DFIR, threat hunting focused training
Community-curated list of all free TryHackMe rooms on GitHub
Linux & DevOps
Free beginner-friendly Linux tutorial - basics through advanced, structured lessons
Free interactive tutorial with built-in Linux console simulator in the browser
Free Docker and Kubernetes labs - browser-based, no installation needed
Free browser-based Docker environment - 2-hour sessions, up to 5 instances
Free browser-based Kubernetes clusters - instant multi-node clusters for learning
Katacoda replacement - Kubernetes clusters and guided tutorials in the browser, free
Community-maintained DevOps roadmap - visual guide with linked resources for each skill
Comprehensive DevOps roadmap with learning resources for each step of the journey
Practice Labs & Sandboxes
Full VS Code in the browser from any repo - 60 hrs/month free, instant dev environments
100+ free premium tools for students - Copilot, JetBrains, DigitalOcean, Azure credits
Free hosted Jupyter notebooks with GPU access - perfect for ML/data science experiments
Run official Cisco images legally - no-cost single-user version, great for CCNA/DevNet
Free 24/7 remote access to real Cisco lab environments for hands-on practice
Experiment with Go code directly in the browser - run, share, and test snippets
Run Rust code in the browser - test snippets, share examples, experiment freely
Career Roadmaps & Guides
Community-driven interactive roadmaps - Frontend, Backend, DevOps, AI, 30+ career paths
Complete free CS degree using online materials from Harvard, MIT, Princeton, and more
9 core CS subjects with specific textbook and video recommendations, 100-200 hrs each
Crowdsourced compensation data for 300K+ tech roles - salary by company, level, location
Official visual roadmaps for all Cisco cert paths - CCNA through CCIE across all tracks
Comprehensive visual IT cert roadmap - CompTIA, Cisco, AWS, Azure paths for 2025
Reddit IT career advice - cert path planning, salary discussions, job market insights
Reddit CS career advice - interview prep, company reviews, career trajectories
YouTube Channels
10.6M+ subs - full 1-12 hour structured courses on everything, new ones weekly
2.3M+ subs - project-based web dev tutorials, every tutorial produces a complete project
4.7M+ subs - Python, JS, C#, Java, React, systematic and clearly structured courses
1.5M+ subs - Python, ML, software engineering, approachable project-based tutorials
1.47M+ subs - Python fundamentals, OOP, Flask, Django, pandas, "Python done right"
1.78M+ subs - React, TypeScript, Firebase, Node, Flutter, sequential mini-courses
1.6M+ subs - JavaScript, CSS, modern frontend, clear concise JS fundamentals
CompTIA training god - full free A+, Network+, Security+ courses, updated regularly
11x Microsoft MVP - 952+ Azure videos, free AZ-900/104/305 full courses, ad-free
Networking and IT made fun - CCNA, Linux, hacking, cloud, makes complex topics engaging
Vim, Go, performance, system programming - entertaining and deeply technical
Free Books & Reference
4,000+ free books, 2,000 free courses in 43 languages - 243K+ GitHub stars
Searchable version of the free programming books collection - find exactly what you need
60,000+ books and 30,000+ hours of video - free with participating public library cards
Pay-what-you-want tech book bundles - O'Reilly, No Starch Press, Pearson, rotates frequently
100+ API docs in one searchable interface - offline-capable, open source by freeCodeCamp
The authoritative web standards reference - HTML, CSS, JS, Web APIs with browser compat tables
Massive repository of algorithm explanations, interview questions, language tutorials
Official Cisco certification books - OCGs, study guides, practice tests by Wendell Odom etc
The authoritative Python starting point - thorough, comprehensive, always up to date
Free Python materials, lectures, and exercises for people with some programming experience
Community & Forums
Reddit's biggest programming learning community - beginner questions, resource lists
Used by 84% of developers - Q&A, AI Assist for finding answers, the ultimate reference
Free tools for students and teachers - Student Developer Pack, Classroom, Campus Experts
Discord - 170K+ members, beginners and veterans, bot dev, mobile, web, crypto sections
Discord - 28K+ members, CCNA/CCNP/CCIE rooms, voice study sessions, CCIE experts
Reddit cybersecurity community - career advice, news, learning resources, discussions
Official Cisco forums - cert-specific discussions, Cisco employees and experts participate
Data Science, AI & More
Free micro-courses - Python, Pandas, SQL, ML, deep learning, free GPU notebooks
Free official MongoDB courses - 5-min lectures, browser-based labs, completion certificates
Free official PostgreSQL documentation and tutorial from the PostgreSQL project
Free official game dev tutorials - 2D, 3D, VR, AR, guided pathways for Unity engine
Free open-source game engine docs - no fees or royalties, growing rapidly, great community
Free Google courses - Jetpack Compose, Kotlin, Material Design, architecture, testing
Official iOS/Swift tutorials - 17-hour tutorial covering Xcode, SwiftUI, and UIKit basics
100% free 15-week IT bootcamp - corporate grant funded, 80%+ job placement rate
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