Welcome to BestMARC, a centralized, online MARC record database.

BestMARC is the most complete collection of print, AV, professional & e-materials records in the business. Use BestMARC to create, find or update MARC records.

Can’t find a record? With one mouse click, we can help. We integrate the results from z39.50 search technology with Smart Filter into those from the BestMARC database to offer you the best quality records available based on your search criteria. Once you choose the record you want, edit or enhance it as you like. Use BestMARC’s Subject Explorer to search for additional Sears, LOC and LCAC subject headings by dewey number, LC classification number or subject term. And our new RDA tool helps you easily add RDA fields to new or existing records.

BestMARC helps you maintain your MARC record database with built-in tips & examples, easy to use and customize templates, and online how-to tutorials to review and learn about the latest features.

Account Login

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Register to preview BestMARC’s features or to
catalog original records with our online MARC editor

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For What's New, Feedback, and Support, go to

BestMARC Support Center


For information about purchasing a BestMARC subscription
or other Mitinet products, go to

Mitinet Library Services - BestMARC


System Requirements

To use BestMARC, you’ll need the latest version of Google Chrome, Firefox, Internet Explorer, or Safari.

Older browser versions (IE8 or earlier) aren’t recommended for the best experience.

Javascript must be turned on and browser cookies enabled.

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