| Z Library | https://b-ok.africa/ | Philosophy, religion etc |
| PDF Drive | https://www.pdfdrive.com | Philosophy, religion etc |
| AU Press | www.aupress.ca | Free accessible books. |
| Project Bartleby | www.bartleby.com | Novels on Fiction, Drama,Poetry, Short Stories, Reference Books, Dictionaries. |
| Codesria | www.codesria.org | Book series |
| College Open Textbooks | www.collegeopentextbooks.org | Collection of peer reviewed open textbooks. |
| Directory of Open Access Books | www.doabooks.org | Includes resources on Philosophy and Religion. |
| Edtech Books | www.edtechbooks.org | Education Technology. |
| Equity Press | www.equitypress.org | Freely accessible Books. |
| Globalethics.net Libraries | www.globethics.net | Ethics, History, Literature, Philosophy, Religion etc |
| Project Gutenberg | www.gutenberg.org | A wide range of collection |
| Alex Catalogue of Electronic texts | www.infomotions.com | American Literature, English Literature, Western Philosophy |
| InTech Open Access Books | www.intechopen.com/books | Science, humanities, technology and medicine. |
| Knowledge Unlatched | www.knowledgeunlatched.org | Humanities and social sciences. |
| OAPEN Library | www.oapen.org | Humanities and social sciences. |
| BCcampus Open Textbooks Collection | www.open.bccampus.ca/find-open-textbooks | Arts, sciences, social sciences, and business studies etc |
| Open Text Book Library | www.open.umn.edu/opentextbooks | General Education, Humanities and Social Sciences. |
| Open Book Publishers | www.openbookpublishers.com | Humanities, social science etc |
| OpenStax | www.openstax.org | Includes resources in Humanities (History). |
| The Open Textbooks | www.opentextbooks.org.hk | Arts and Humanities, Education and others. |
| Orange Grove Texts Plus | www.orangegrovetexts.org | A wide range of disciplines. |
| Oxford Text Archive | www.ota.ox.ac.uk | Languages |
| Page by Page Books | www.pagebypagebooks.com | Classic Novels. |
| Universal Library | www.pagebypagebooks.com | Diverse books and collections of Journal and Research material. |
| Sharing the Word | www.sharingtheword.intersearch.com.au | Theology and philosophy. |
| Open SUNY Textbooks | www.textbooks.opensuny.org | Bio-medical ethics and literature. |
| UCL Press | www.uclpress.co.uk | Openly accessed university press for ebooks |
| UNESDOC Digital Library | www.unesdoc.unesco.org. | Education, natural sciences, social sciences and humanities etc |
