Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Master the command line, in one page

A collective list of free APIs

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

A complete computer science study plan to become a software engineer.

📚 Freely available programming books

Master programming by recreating your favorite technologies from scratch.

Minimal examples of data structures and algorithms in Python