Create, manage, and download high-quality bibliographic and authority records.

Streamline original and copy cataloging to share with OCLC member libraries
Connexion lets you create and edit high-quality bibliographic and authority records and then share them with the entire OCLC cooperative, which benefits libraries around the world. Connexion is a robust set of tools and services backed by OCLC's 40+ years of cataloging experience. Its advanced features provide unparalleled flexibility for libraries and other allied institutions.
Choose the interface that meets the needs of your library
There are two ways to access the power of Connexion: a Web browser-based interface and a Windows® client application. Which interface you use depends on the unique needs of your library and cataloging staff.


Get users the content they need with up-to-date holdings
Accurate holdings information maintained with Connexion helps Web searchers everywhere find your collections through your discovery interface and OCLC's consumer service partners. Additionally, accurate holdings help you to analyze your collection, compare it to others using WorldShare® Collection Evaluation and help thousands of libraries share materials through the WorldShare Interlibrary Loan network.
Connexion is a full-service online cataloging tool backed by OCLC's 40+ years of cataloging experience. Connexion lets you create and edit high-quality bibliographic and authority records and then share them with the entire OCLC cooperative, which benefits libraries around the world.
Service availability
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Available everywhere except Germany and the Netherlands
Learn more
Join OCLC-CAT, a listserv discussion of all OCLC cataloging services. Or browse the archives.
Join OCLC-CJK, a listserv discussion of OCLC Chinese, Japanese and Korean functionality. Or browse the archives.
A detailed comparison chart is available to help you compare functionality in all cataloging interfaces, point by point.
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Upcoming events
On-demand events
28 January 2022
OCLC Cataloging Community Meeting
18 June 2021