The BIBFRAME tools have been enhanced with the conversion specifications, programs, and a viewer for converting MARC title and name/title Authority records to BIBFRAME Work descriptions.   The specifications are linked to the “MARC 21 to BIBFRAME 2.0 Conversion Specifications” page found at .  The conversion programs are available at  (go to active branch “ with-auths ”).  The side-by-side viewer is located here .


These tools are being used daily at the Library of Congress in the development and adjustment of its BIBFRAME 2.0 Pilot and thus are constantly being updated, corrected, etc.    Since they have not reached a stable state, versioning is indicated but not in the way it will be at a future more stable time. 


Sally McCallum



Sally H. McCallum

Chief, Network Development and MARC Standards Office

Library of Congress, 101 Independence Ave., SE

Washington, DC 20540  USA

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Tel: 1-202-707-5119 – Fax 1-202-707-0115