Just another JPEG file reader/writer for data destruction freaks.

Jpegtran provides Ruby interface to the jpegtran tool

JpEmsFee is EMS delivery fee calculate from japan

Useragent sniffing tool to choose the more appropriate image format between JPEG and WebP.

全国地方公共団体コードから住所(都道府県、市区町村)を取得するgem

Finds points within a distance of a latitude/longitude point using bounding coordinates

A Ruby implementation for Japan postcode .

Gem to access JP Posts Services.

This is a tools of prefectures of Japan.

Japanese Prefecture list

A comprehensive Ruby client library for JPS platform APIs with 69+ API modules, modular loading, OAuth authentication, and optimized performance

it provides EMS shipping rate calculation for Japan

Japan ski area.

Get the stations near the place in Japan.

A Rails plugin for railway data in Japan.

Provide All Station Data in Japan.

株価情報を取得してあれこれするライブラリ

Easy calculating Japanese consumption tax.

PTY for jruby

JPX industry code and category gem