NotebookLM Language Switcher
The NotebookLM Language Switcher is a floating widget providing instant, one-click control over both the UI Language (interface) and the OUT Language (AI responses).
Have you ever been deep in a research project, working with sources in different languages, only to find your focus shattered? The constant need to navigate away from your work, lose your place in your research, and wait for a page refresh just to change a language setting is a common frustration. The NotebookLM Language Switcher is the simple, elegant solution designed to end this cycle, keeping you locked into your workflow.
What is the Language Switcher?
In simple terms, the NotebookLM Language Switcher is a small, floating widget that acts like a personal remote control for languages, sitting right on your NotebookLM page. It gives you one-click access to change both the tool's interface language and the language of the AI's responses, all without interrupting your research or requiring you to navigate through cumbersome menus. This simple addition unlocks several powerful features that make multilingual work faster and more intuitive.
Key Features of the NotebookLM Language Switcher
Dual Language Control
The NotebookLM Language Switcher manages two types of languages:
UI Language — Changes the entire NotebookLM interface language instantly. Menus, buttons, labels — everything updates immediately.
OUT Language — Controls the language of AI-generated responses. Get answers in any language while keeping your interface in another.
Quick Favorites Access
Star up to 5 languages in each category. The NotebookLM Language Switcher displays only your most-used languages, keeping the interface clean and fast.
Customizable Position
Place your NotebookLM Language Switcher anywhere on the screen:
Top Left
Top Right
Middle Left
Middle Right
Bottom Left
Bottom Right
Flexible Layout
Choose horizontal or vertical orientation for your NotebookLM Language Switcher based on your screen space and preference.
Show/Hide Toggle
Hide the NotebookLM Language Switcher when you need a clean workspace. Show it again with one click when you need to switch languages.
How to Use the NotebookLM Language Switcher
Setup (One-Time)
Install the NotebookLM Tools browser extension
Open extension settings
Star ⭐️ your favorite UI languages (up to 5)
Star ⭐️ your favorite OUT languages (up to 5)
The NotebookLM Language Switcher appears automatically
Switching UI Language
Click any language button in the UI section. NotebookLM’s interface updates immediately — no page refresh needed.
Switching Output Language
Connect to NotebookLM (one-time authentication)
Click any language button in the OUT section
Page refreshes with your new output language
Customizing Position and Layout
Open the extension sidepanel
Find “Language Settings” settings
Toggle visibility on/off
Select your preferred position
Choose horizontal or vertical layout
All changes apply instantly to your NotebookLM Language Switcher.
Enjoy ✨
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