| Open source software is a powerful ally for information dissemination. It helps to extend liberal
traditions of information access. There are various open source software's available on web with diverse
range of features and capabilities and are used by different Institutional, Disciplinary, Aggregating and
Governmental Repositories. Greenstone, D-Space is widely used open source software systems, and
prospective users sometimes wonder which one to adopt. In fact, the aims of these are very different,
although their domains of application do overlap. The paper describes the comparative study of
prominently used open source software's & their usage in Open DOAR (Directory of open access
repositories) |