keikenchi

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yabooung / mapexp

Travel stamp map — track all 47 Japanese prefectures / 1,897 municipalities and 16 Korean provinces / 250 districts on one map. Keikenchi-based, GPS stamps, share cards, PWA (serverless, browser-only storage)

map pwa geojson nextjs leaflet travel japan korea keikenchi

Updated Jul 24, 2026
TypeScript

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