All guides
Japan Info is a small set of independent guides. Short travel notes live here on japan-info.net; the larger tools each have their own site. Every guide shows its sources and the date facts were checked.
Travel notes
Travel eSIM guide
Compare travel eSIM plans for Japan and South Korea by trip length, data, hotspot use and device support.
Tattoo-friendly bath finder
Onsen and sento listed by each facility’s published tattoo policy, with the official evidence linked.
冷蔵おかずノート（日本語）
冷蔵で届く調理済みおかずの宅配5社を、家族人数・消費期限・送料・受け取り条件で比較する日本語のガイドです。
韓国芸能人wiki（日本語）
韓国の俳優・歌手・K-popアイドルを日本語で調べられる人物事典です。経歴や出演作を出典つきで掲載しています。