免费在线工具
20多款免费在线工具，涵盖旅行、金融、开发者和日常生活。无需注册，即可使用。
旅行
Tax Free Calculator
Calculate your tax refund for Japan, Europe, Thailand and more.
IC Card Guide
Compare Suica, ICOCA, Pasmo and other Asian transit cards.
Voltage & Plug Guide
Check voltage, frequency and plug types by country.
Japan Address Guide
Understand Japanese address structure, prefectures, and postal codes.
韩国火车指南
比较KTX、SRT票价、行程时间和车站信息。