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ISO639

JSON →
library 1.3.3 ·ruby
✓ verified Jun 19, 2026
utility

Look up ISO 639-1 and ISO 639-2 language codes by name, alpha-2, or alpha-3 code.

Resources

docswww.rubydoc.info/gems/iso639/ ↗
githubgithub.com/rmm5t/iso639 ↗

API endpoints

full doc /v1/registry/iso639
install /v1/registry/iso639/install