Open J-Gate was a free database of open access journals, launched in February 2006, hosted by Informatics (India) Ltd. By May 2012 it had been closed for several months and was displaying a message that the site will be back "soon". By December 2012 Open J-Gate had been defaulting to a bare "404 not found" message for over a month.
Informatics started the metadata aggregation from open access journals as part of the development of J-Gate. J-gate claimed to link to full-text of articles from more than 18,000 journals when it was in operation..
Open J-Gate claimed to aggregate metadata from more than 4,000 open access journals published in the English language around the globe. Open J-Gate indexed articles from available e-journals in the open access domain, both from scholarly and popular domain,, peer-reviewed or non-peer reviewed professional magazines and also indexed trade and industry journals.