We do most of our development work with the Java library MARC4j (you can output MARCXML, and validate that): http://marc4j.tigris.org/ And we've used the MARC tools in YAZ on the command line quite often, too: http://www.indexdata.com/yaz The LOC has a comprehensive list of tools: http://www.loc.gov/marc/marctools.html -- Scott On 01/23/2015 02:19 PM, Dana Jemison wrote: > Hello! > > I'm looking for a MARC validation tool (either binary or XML MARC) to identify formatting and structural errors in MARC records, which can be run in a Unix environment. Does anyone know of such a tool, or has anyone built something like this which they'd be willing to share? > > Thanks so much! > > Dana > > Dana Jemison > Principal Metadata Analyst > California Digital Library > University of California, Office of the President > 415 20th Street, 4th Floor, Office 424B > Oakland, CA 94612-2901 > Tel: 510.987.0832 > Email: [log in to unmask] > -- Scott Prater Shared Development Group General Library System University of Wisconsin - Madison