Anna's Arhive is an extensive open-access digital library that mirrors content from Sci-Hub, LibGen, and other sources. It hosts over 37 million books and 105 million papers, focusing on digital preservation and free knowledge access. The project’s data and code are entirely open source, supporting the mission of creating a permanently accessible global knowledge repository.

'The Library to the World', in which books, education materials, information, reference materials, documents, and content will be provided freely

With a mission to provide everyone access to helpful and practical personal development content on an easy-to-use platform, a “boon” is exactly what we hope to deliver.

This website provides free computer, mathematics, technical books to developers all over the world

Eloquent JavaScript is an e-book that describes the wonders of Javascript and provides exercises on creating real world applications.

RIP Tutorial is a free website that contains plenty of eBook resources and examples that can be helpful to developers.