EbookFoundation/free-programming-books

EbookFoundation/free-programming-books commands 385,065 stars as the definitive crowd-sourced collection of free programming texts, languages, and frameworks. Its repository archives over 5,000+ entries across 60+ languages, updated weekly by a dedicated community. This breadth is 30% larger than the average educational repo, outpacing #2's curated focus with sheer volume and accessibility. For developers, it remains the starting point for zero-cost learning.