What is l10n (Localization)?

Localization, abbreviated l10n for the ten letters between the l and the n, is the process of adapting a product for a specific locale. Translation is the biggest part, but l10n also covers date and number formats, currency, units, imagery, legal text, and cultural conventions like name order or formality levels.

Localization depends on internationalization. i18n makes the codebase capable of switching languages; l10n fills that capability with content for each target market. A team usually internationalizes once, then localizes repeatedly as it enters new markets or ships new features. Pricing pages, onboarding emails, and error messages all count; localization is broader than the UI strings alone.

For a Laravel app, localizing means producing a complete set of translations for each locale in lang/, verifying formats through the intl extension or Carbon, and reviewing the result in context. A translation management system keeps that work organized once more than one language or more than one contributor is involved.