nihonpost

TypeScript-first Japanese postal code (郵便番号) lookup with address autofill and a Vue 3 composable. Zero dependencies, fully typed.

last commit 2026-07-11

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TypeScript-first Japanese postal code (郵便番号) lookup with address autofill and a Vue 3 composable. Zero dependencies, fully typed.

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Web

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npm

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slug: nihonpost

Show HN: Nihonpost – I parsed Japan Post's KEN_ALL.CSV so you don't have to