Multi-language support

How language detection works

The widget determines the visitor’s language in this order:

Stored preference

If the visitor has previously interacted with the widget and a language preference was saved, that preference is used.

Browser language

The widget reads the browser’s language setting (navigator.language). If it starts with de, German is used.

Default fallback

If neither condition matches, English is used as the default.

What adapts to language

Element	Behavior
Greeting message	Shows the greeting in the detected language
Quick questions	Displays the matching language set
Delayed messages	Timed engagement messages use the detected language
Human handover labels	UI labels for human support adapt
Widget UI	Buttons, placeholders, and system text follow the detected language

Setting up multi-language content

When configuring your agent, you can provide content in both languages:

Greeting message — write an English and a German version

Quick questions — configure up to 10 per language

System prompt — instruct your agent to respond in the visitor’s language

Add a line to your system prompt like: “Always respond in the same language the visitor uses. You support English and German.”

Value	Behavior
`en`	Always use English, regardless of browser language
`de`	Always use German
`multi`	Auto-detect from browser language (recommended)

Value

Behavior

en

Always use English, regardless of browser language

de

Always use German

multi

Auto-detect from browser language (recommended)

​How language detection works