JSPM

Match BCP 47 language tags with language ranges per RFC 4647

Normalize, canonicalize, and format BCP 47 tags

Parse and stringify BCP 47 language tags

Simple validator for BCP47 locale tags

A BCP-47/IETF locale specifier parser/validator

Native language names for all ISO-639-1 codes plus some common IETF BCP 47 language tags

BCP-47 Tag Utilities

Validates BCP-47 Language Tags using the npm package 'bcp-47' and formats them in a unique way to ensure consistency.

Native language names for all ISO-639-1 codes plus some common IETF BCP 47 language tags

Select the most suitable language based on the IETF language tag.