Settings
How the site looks on this device. All of it stays on this device.
Appearance
Dark is the default. The button in the top bar switches it at any time.
Language
Japanese and English. Each language has its own URLs, so a link you share opens in the same language.
日本語で見るWhat stays on this device
Tool history, appearance settings and files saved to the bench remain in this browser. Page analytics are separate. The button below clears the bench only; downloaded files are not removed.