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BCP 47 language tags are built from subtags in the IANA Subtag Registry. This tool helps you find or look up subtags and check for errors in language tags.
Read Choosing a Language Tag for step-by-step guidelines on creating language tags. This tool also provides information to guide your choices.
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Web app created 1 April 2007. Last update 2013-10-07 10:05 GMT
Copyright © 2007-2013 Richard Ishida.
Version summary: Currently supports the IANA Subtag registry of 2013-10-04. The tool currently reports subtags for 8,068 languages, 227 extlangs, 162 scripts, 301 regions, 62 variants, and 26 grandfathered subtags. Please report any bugs to me.