free-programming-books is one of the more popular repositories on GitHub for a list of free e-books on programming and other topics, originally a clone of StackOverflow - a list of freely available programming books contributed by Karan Bhangui and George Stocker. Stocker, which was originally a clone of StackOverflow - a list of freely available programming books contributed by Karan Bhangui and George Stocker, and now moved to GitHub by Victor Felder for collaborative updating and maintenance. It has grown to become one of GitHub's most popular repositories, with more than 236,000 stars, about 9,700 observers, more than 7,000 commits, more than 1,900 contributors, and more than 49,200 branches.

The Free eBooks Foundation now manages the repo, a non-profit organization dedicated to promoting the creation, distribution, archiving, and sustainability of free eBooks.