Online Courses
13 resources
Courses whose materials are genuinely public — lecture videos, slides or notebooks you can open without an institutional login. Where a course gates part of its material, that is noted.
Neural Networks: Zero to Hero
Andrej Karpathy builds backprop, then a GPT, from scratch
Code-along videos that start at a scalar autograd engine and end at a working transformer. The best available answer to "but what is actually happening".
Fast.ai Practical Deep Learning
Top-down practical deep learning
Teaches you to train a working model in lesson one and explains the theory afterwards — the inverse of most curricula, and it suits people who learn by building.
Google ML Crash Course
Google's introductory machine-learning course
Short, free, and heavy on interactive exercises. A reasonable first stop before the university courses.
MIT 6.S191: Intro to Deep Learning
MIT's intensive introductory course
Runs annually with public lecture videos and labs; refreshed each year rather than left to age.