Jason Brownlee's long-running tutorial site: hundreds of free, step-by-step machine learning walkthroughs in Python, organised into 'start here' guides by topic — getting set up, understanding algorithms, your first complete project, your first neural network, time series forecasting. Each tutorial is written to get you to a working result rather than a theory exam.
Why I recommend it: The tutorials and the 'start here' guides are free to read with no account. The site's business is paid ebooks, and the free ebook offer costs you an email address and an ongoing email course, so expect the marketing. A fair criticism to know going in: the tutorials are recipe-shaped, which gets you running code fast but can leave the why thin — pair them with something that explains the ideas.
A free, open-source cloud engineering program built on accessible technical education, hands-on practice, AI-powered feedback, and independent learning.
From the site: A free, open-source cloud engineering program built on accessible technical education, hands-on practice, AI-powered feedback, and independent learning.
Why I recommend it: A self-paced, no-cost path into cloud engineering; great if you want structured hands-on labs without a bootcamp price tag.
Hands-on cybersecurity training through guided browser-based labs.
Why I recommend it: A generous free tier and a public profile that shows what you actually completed. That profile is proof, which is more than a certificate.
