J-Gate is a bibliographic database to access global e-journal literature. As a discovery platform for the research community, it is presented as a website under subscription-based access to a large database of scientific research. It contains abstracts, citations, full-text access for all Open Access journals and other key details from academic journals by covering 71 million+ Indexed articles, 58,000+ journals from over 16,000 publishers. It gives two types of quality measure for each title; those are H-index and SJR (SCImago Journal Rank). 
Overview.
It is developed and launched in 2001 by Informatics India Ltd. As a contribution to the Open Access community, Informatics initially also offered a free platform named Open J-Gate.
The current J-Gate version is categorized into 6 different top level subjects like Biomedical Sciences, Engineering &amp; Technology, Social &amp; Management Science, Agriculture &amp; Biological Sciences, Arts &amp; Humanities and Basic Sciences. J-Gate is accompanied by an extended version, named J-Gate Custom Content for Consortia, offered as a customized resource-sharing platform for Consortium members.