The Web of Science™ is the world’s most trusted publisher-independent global citation database. Guided by the legacy of Dr Eugene Garfield, inventor of the world’s first citation index, the Web of Science is the most powerful research engine, delivering your library with best-in-class publication and citation data for confident discovery, access and assessment.
Our multidisciplinary platform connects regional, specialty, data and patent indexes to the Web of Science Core Collection™. Our comprehensive platform allows you to track ideas across disciplines and time from almost 1.9 billion cited references from over 171 million records.
Over 9,000 leading academic, corporate and government institutions and millions of researchers trust the Web of Science to produce high-quality research, gain insights and make more-informed decisions that guide the future of their institution and research strategy.
Why Web of Science data?
Web of Science Core Collection content is uniquely selective and our indexing is uniquely consistent. Our independent and thorough editorial process ensures journal quality, while more than 50 years of consistent, accurate and complete indexing has created an unparalleled data structure.
Every article and all cited references from every journal have been indexed, creating the most comprehensive and complete citation network to power both confident discovery and trusted assessment. Only the Web of Science Core Collection indexes every piece of content cover-to-cover, creating a complete and certain view of over 115 years of the highest-quality research.
The world's original citation index
Web of Science Core Collection provides cover-to-cover indexing back to 1900 across the world’s highest-quality and most impactful publications.
Publisher-neutral curated quality
A robust evaluation and curation process by a team of expert in-house editors, carefully selecting content for quality and impact.
The definitive resource for trusted open access content
Confidently discover and access millions of gold and green versioned open access articles.
Unmatched data quality and citation linking
We capture, index and link every piece of metadata for all items in the Web of Science Core Collection.
Expansive multidisciplinary discovery
Connecting research across the sciences, social sciences, arts and humanities from journals, books and conference proceedings.
The robust evaluation and curation of our data make the Web of Science Core Collection the world’s most trusted publisher-independent global citation database.
A trusted, high-quality collection of journals, books and conference proceedings. Learn more
Science Citation Index Expanded (SCIE)
Search across over 9,200 of the world’s most impactful journals across 178 scientific disciplines. More than 53 million records and 1.18 billion cited references date back from 1900 to present.
Social Sciences Citation Index (SSCI)
Search across over 3,400 of the world’s most impactful journals across 58 social sciences disciplines. More than 9 million records and 122 million cited references date back from 1900 to present.
Arts & Humanities Citation Index (AHCI)
Search across over 1,800 of the world’s most impactful journals across 28 arts & humanities disciplines. More than 4.9 million records and 33 million cited references date back from 1975 to present.
Emerging Sources Citation Index (ESCI)
Search across over 7,800 of the world’s highest-quality journals across 254 disciplines. More than 3 million records and 74 million cited references date back from 2005 to present.
Book Citation Index (BKCI)
Discover over 104,500 editorially selected books with 10,000 new books added each year. More than 53 million cited references date back from 2005 to present.
Conference Proceedings Citation Index (CPCI)
This multidisciplinary index is the fastest way to gain access to cutting edge, impactful research derived from over 205,000 conference proceedings. More than 70 million cited references date back from 1990 to present.
Over 12 million gold and green versioned articles, as well as bronze free-to-read articles, are available from 5,000 fully open access, hybrid and subscription journals curated by our in-house team and trusted partners.
Use the Web of Science platform to better measure and report on the impact of your institution’s or funding agency’s investment in open access.
Access an unrivaled breadth of world-class research literature linked to a rigorously selected core of journals. Uniquely discover new information through meticulously captured metadata and citation connections.