Dashboard → Website language and bot language
In pictures
Personal website language
The website’s Français / English selector is your visitor preference. It is shared across public pages, login, dashboard and documentation. It does not change the bot’s reply language in all your servers.
Bot language per server
In General → Preferences → Bot language, choose French or English and save. This setting affects translated commands, help, logs and automatic server messages. Text you write yourself remains unchanged.
Discord command names
Discord can show localised descriptions according to the reader’s language. Spider replies follow the server setting. English names and descriptions for custom commands are configured in their editor.