In this period of transition from the information age to the knowledge society, libraries have much bigger challenges to face. The entire library view has now moved from book collection to a single window knowledge bank. This document discusses the definition and characteristics of open source libraries management software, the selection criteria for the best open source libraries management software, their advantages and limitations. Open source library management software is a solution to reduce these costs. The document briefly describes the functionality of some management software for open source libraries such as Greenstone Digital Library, DSpace, KOHA, E-Prints, NewGenlib, etc., Useful for the development of digital libraries and institutional repositories.
