Free or Low Cost Resources¶
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Free or low cost courses, YouTube channels, and hands-on labs to prep for certifications without spending a dime.
Free Courses & Platforms¶
- freeCodeCamp — Full courses on Linux, Python, cloud, networking, and more
- freeCodeCamp YouTube — Full-length certification prep courses (AWS, Docker, Kubernetes, Terraform, Python, and more)
- AWS Skill Builder — Free AWS training courses and exam prep (some paid content)
- Microsoft Learn — Free GitHub certification prep and cloud training
- KodeKloud Free Tier — Hands-on DevOps labs (free tier available)
- Anthropic Academy — Free AI/ML and Claude courses with completion certificates
- Google SRE Books — All three SRE books free to read online
- Linux Journey — Free interactive Linux learning from beginner to advanced
- The Odin Project — Free full-stack curriculum with Git and command line foundations
- edX — Free courses from MIT, Harvard, and Linux Foundation (paid certificates optional)
- Coursera — Free to audit courses from Google, IBM, and top universities (paid certificates optional)
- NVIDIA Deep Learning Institute — Free self-paced AI/ML courses
- Cisco Networking Academy — Free networking and cybersecurity courses
- Professor Messer — Free CompTIA A+, Network+, and Security+ video courses
- AWS Workshops — Free guided AWS hands-on workshops
- Red Hat Developer — Free RHEL developer subscription and learning resources
- Python.org Tutorial — Official Python tutorial, free forever
- Postman Academy — Free API fundamentals, testing, and automation courses with certificates
YouTube Channels¶
- NetworkChuck — Networking, Linux, cloud, and cyber security
- TechWorld with Nana — DevOps, Kubernetes, Docker, Terraform
- KodeKloud — Kubernetes, Docker, Ansible, Terraform
- Learn Linux TV — Linux administration and home lab setups
- John Savill — Cloud architecture and certification prep
- Adrian Cantrill — AWS deep dives and certification guidance
- Jeff Geerling — Ansible, Raspberry Pi, self-hosting, home lab
- Professor Messer — CompTIA A+, Network+, Security+ full courses
- Fireship — Fast-paced tech explainers and DevOps concepts
- DevOps Toolkit — Kubernetes, GitOps, platform engineering
- That DevOps Guy (Marcel Dempers) — Docker, Kubernetes, and cloud native walkthroughs
- Mumshad Mannambeth — CKA, CKAD prep and Kubernetes deep dives
Practice Exams & Labs¶
- Killer.sh — CKA, CKAD, CKS practice exams (included with exam purchase from Linux Foundation)
- AWS Well-Architected Labs — Free hands-on AWS labs
- Play with Docker — Free Docker sandbox in the browser
- Play with Kubernetes — Free Kubernetes sandbox in the browser
- HashiCorp Learn — Free Terraform tutorials and labs
- Katacoda Alternatives on Killercoda — Free interactive DevOps scenarios (Linux, K8s, Docker, Git)
- OverTheWire — Free Linux and security challenges (great for beginners)
- sadservers.com — Free Linux troubleshooting scenarios (like LeetCode for sysadmins)
- Datadog Learning Center — Free Datadog courses and certification prep
- New Relic University — Free observability training and certification prep