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Catalog / mattddowney / isbn
Public GitHub Catalog Discovered Sep 24, 2026

mattddowney / isbn

Converts between 10 and 13 digit ISBN (EAN)

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Public repository record indexed from GitHub. Explore verified star velocity metrics, source code repositories, and curated developer tool directories across the GitHubRepo ecosystem.

#1621598GitHub System ID
mattddowneyOrganization / User
PublicVisibility
ActiveCatalog Status

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