The Library of Congress is the largest library in the world, with millions of books, recordings, photographs, newspapers, maps and manuscripts in its collections. The Library is the main research arm of the U.S. Congress and the home of the U.S. Copyright Office.
WorldCat is a union catalog that itemizes the collections of 15,637 libraries in 107 countries that participate in the OCLC global cooperative. It is operated by OCLC, Inc. The subscribing member libraries collectively maintain WorldCat's database, the world's largest bibliographic database.
The most extensive free online library is the Internet Archive. Boasting over three million texts and over a million (each) of video and audio recordings, the Internet Archive offers a wealth of free information, including the largest repository of archived web pages, going back to 1996, through its Way Back Machine.
Listing over 3 million free books on the Web. The Online Books Page is an index of e-text books available on the Internet. It is edited by John Mark Ockerbloom and is hosted by the library of the University of Pennsylvania. The Online Books Page lists over 3 million books and has several features, such as A Celebration of Women Writers and Banned Books Online.
Project Gutenberg is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks." It was founded in 1971 by American writer Michael S. Hart and is the oldest digital library.
The California Digital Library was founded by the University of California in 1997. Under the leadership of then UC President Richard C. Atkinson, the CDL’s original mission was to forge a better system for scholarly information management and improved support for teaching and research
HathiTrust Digital Library is a large-scale collaborative repository of digital content from research libraries including content digitized via Google Books and the Internet Archive digitization initiatives, as well as content digitized locally by libraries.
ScienceOpen is a website. It is freely accessible for all and offers hosting and promotional services within the platform for publishers and institutes. The organization is based in Berlin and has a technical office in Boston
Z-Library (abbreviated as z-lib, formerly BookFinder) is a shadow library project for file-sharing access to pirated scholarly journal articles, academic texts, and general-interest books. As of 15 September 2021, Z-Library states that it provides access to more than 8,533,000 books and 84,837,000 articles. According to Z-Library, it is "the world's largest ebook library" for eBooks as well as "the world's largest scientific articles store" at the project's page for academic articles (at booksc.org). Z-library also describes itself as a non-profit organization sustained by donations.
Launched in 2009, the World Digital Library selection of rare books, manuscripts, and other materials dating back to 8,000 BC. The collection includes more than 19,000 publications from over 190 countries.This project was developed by the U.S. Library of Congress and UNESCO, with the purpose of making culture available to everyone. It features thousands of books, photos, and maps that were once only available in museums, so it's just like visiting these cultural institutions from home.Anyone can download the books for free. Depending on what you're interested in, you may want to check out the rare book collection on offer. There's also the option to search by place, by topic, by time period, by language, or by the institution.
The National Library of India is a library located in Belvedere Estate, Alipore, Kolkata, India. It is India's largest library by volume and public record. The National Library is under Ministry of Culture, Government of India. The library is designated to collect, disseminate and preserve printed material produced within India. With a collection in excess of 2.2 million books and records, it is the largest in the country. Before independence, it was the official residence of Governor-General of India.
The UNESCO Digital Library is the repository of UNESCO’s institutional memory and a source of high-quality information on UNESCO activities (in education, natural sciences, social and human sciences, culture, and communication and information), with more than 350,000 documents dating back to 1945. It includes the collections of the UNESCO Library and several documentation centres in UNESCO’s Field Offices and Institutes, as well as the UNESCO Archives. The essential purpose of the UNESCO Digital Library is to share knowledge and to transmit it to future generations.
- UNESCO publications - UNESCO-sponsored publications - Speeches of the Director-General from 1970 to present - Documents of UNESCO’s Governing Bodies- Publications of interest to UNESCO