Show HN: Nihonpost – Japanese postal code lookup for Vue 3

Category: library

Tags: japanese-postal-code, vue-3, address-autofill

Score: 6.5/10 (Innovation: 5, Technical: 6, Documentation: 8, Utility: 7)

Nihonpost is a TypeScript-first, Vue 3 composable library for Japanese postal code to address lookup, offering self-hostable offline operation, automatic data updates via CI, and comprehensive input normalization. Its clever chunked data loading and zero-config CDN fallback make it a practical, well-crafted tool for any Japanese web form.

Target audience: frontend devs

Repository: https://github.com/Thiya11/nihonpost · TypeScript · MIT · 1 stars

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