ISO639 Language Codes

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library 1.0.1 ·javascript
verified May 27, 2026

The `iso639-codes` package provides a comprehensive, static dataset of ISO639 language codes, mapping human-readable language names to their corresponding ISO639-1 (alpha-2) and ISO639-2 (alpha-3) codes, alongside a list of alternative names for each language. The current stable version is 1.0.1, indicating a mature and stable dataset. The package operates on a data-driven release cadence, likely receiving updates primarily when the underlying ISO standard data source (www.loc.gov/standards/iso639-2) changes, or for minor maintenance. Its key differentiator is its direct, pre-parsed JSON structure, which allows for straightforward integration and fast local lookups of language metadata, making it suitable for internationalization (i18n) efforts requiring efficient access to language identifier information without external API calls.

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