Science Citation Index Expanded
Advance scientific research with the world’s first citation index
Sustain and advance multidisciplinary scientific research
Quickly locate key papers from reliable scientific journals and explore a comprehensive citation network to discover related research.
Build an authoritative understanding of a topic
Rely on a trustworthy foundation
Conduct meaningful analyses
Research with confidence using trusted content
Carefully curated
Our unique approach to assessing journals guards against inclusion of hijacked and so-called “predatory” titles.
Unbiased selectivity
Independent, in-house experts evaluate and select journals to create a dataset of the world’s leading publications that is free from potential industry bias or conflict of interest.
Meticulously indexed
Cover-to-cover indexing, complete cited reference, author, and affiliation data, and accurate subject classifications help you pinpoint the research you need.
Science Citation Index Expanded by the numbers
9,461
actively publishing journals covered
182
subject categories represented
67.3m+
records with comprehensive metadata
1900
first year of coverage
Resources
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