Learning resources
Popular open-source tutorials, free books, roadmaps and curated lists on GitHub. We describe them; the content lives in the original repositories.
All 29 Roadmaps 3 Books & Courses 5 Interview Prep 5 Build Your Own 3 Curated Lists 7 AI & Prompts 6
A free guide to large-scale system design and interview prep, with flashcards
Python implementations of classic algorithms, built for learning rather than production
JavaScript implementations of classic data structures and algorithms, with explanations
Free, condensed interview prep for busy engineers, from resume to offer
Visual, plain-language notes on how large systems work and how they are designed