These tools search the Trie data structure in different ways. Useful only for debugging.
~100 MB of data will be loaded
The tool runs entirely in your browser. No data leaves your computer.
Upload a MARC21 Binary (.mrc) or MARCXML (.xml) file to automatically subfield zero ($0) id.loc.gov LCNAF URIs to name fields (100, 110, 700, 710).
Drop MARC file here or browse
Supports .mrc, .marc, .xml files
Don't have a MARC file? Use one of these: