Internationalization

Webnav.ai supports four languages with automatic detection.

Supported Languages

Code	Language
`zh`	Simplified Chinese
`en`	English
`zht`	Traditional Chinese
`ja`	Japanese

Setting the Language

Use the data-lang attribute to force a specific language:

html

<script src="https://widget.webnav.ai/widget/chat-widget.js" data-base-url="https://yoursite.com" data-lang="en"></script>

Auto-Detection Priority

When data-lang is omitted, the widget detects the language automatically using the following priority:

data-lang attribute — Highest priority; always respected if set
Page lang attribute — Reads <html lang="en"> from the host page
Browser language — Uses navigator.language or navigator.userLanguage
Fallback — Defaults to zh (Simplified Chinese)

Localized UI Elements

All widget UI strings are localized, including:

Chat bubble tooltip
Input placeholder text
Send button label
Loading and error messages
Sample question prompts

AI Response Language

The AI responds in the same language as the widget UI. If the visitor asks a question in a different language, the AI will typically respond in the visitor's language while keeping the UI in the configured language.

Internationalization ​

Supported Languages ​

Setting the Language ​

Auto-Detection Priority ​