WebDewey: the right tool to organize your collection
WebDewey is the electronic version of the Dewey Decimal Classification® (DDC) system. It is a full representation of all published numbers, plus other mappings and new terms that have been approved by the Dewey Editorial Policy Committee (EPC). It puts the power of the world’s most widely used library classification system in the hands of metadata managers to efficiently organize their collection(s).
WebDewey is the easiest way to use the DDC to organize and classify library collections. With WebDewey, metadata managers have the most up-to-date DDC numbers available that are based on an array of continually evolving topics and languages. WebDewey also includes:
- searching or browsing DDC numbers, Library of Congress Subject Headings (LCSH) and mapped MeSH headings
- adding your own notes and displaying them in context
- an easy-to-navigate, simple user interface that is suitable for the novice as well as the power user
- access to the full range of Dewey linked data uniform resource identifiers (URIs) and associated metadata, available by logging in using your WebDewey credentials via the Dewey linked data website; for a full list of data, please visit the Dewey linked data documentation
- access to two new APIs that enable you to easily integrate Dewey linked data into other systems and services
Dewey Print-on-Demand
If you prefer to have offline access to DDC, we have you covered there, too. We now offer a Dewey Print-on-Demand option. This 4-volume set includes the latest changes and topics available in the DDC and will be updated on an annual basis.
Need to incorporate cuttering into your workflows?
Dewey Cutter software is available for download at no additional charge and automatically provides cutter numbers from the OCLC Four-Figure Cutter Tables when you input text.
"Delaware Libraries use the Dewey Decimal Classification system as a match point across all library services—including reference, programs, and circulation—to get a sense of how Delawareans are using libraries and what they are trying to accomplish."
Annie Norman
State Librarian and Director
Delaware Division of Libraries
Dover, Delaware, United States
The Dewey Decimal Classification (DDC) system is the world’s most widely used way to organize library collections. The DDC constantly updates to enable better discovery across any topic in multiple languages. Because the DDC is easy to use, you can increase the visibility of your materials quickly and efficiently.
Service availability
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Available everywhere
Learn more
Download the Dewey Services brochure
Download the brochure (US Letter)
Download the brochure (A4)
Connect with English-language WebDewey users in the OCLC Community Center.
Upcoming events
Watch this space for more upcoming webinars
On-demand webinars
Watch this space for past and recorded Dewey Services events.
Recent news
The Dewey blog is a great source for news and views on classification issues as well as interesting and unusual DDC resources and curiosities. It's also a convenient way to share feedback directly to the DDC editors to help shape the future of the DDC.
All copyright rights in the Dewey Decimal Classification system are owned by OCLC, Inc. Dewey, Dewey Decimal Classification, OCLC and WebDewey are registered trademarks of OCLC, Inc.