Download the Lean Library Extension. Enjoy smart access, while you browse!

Quick and easy

The Lean Library Browser Extension helps you to access digital content offered by your library, while you browse and search the internet as you normally do.

Go to, install the extension in your browser and select your institution (Bibliothèque nationale du Luxembourg, University of Luxembourg, or You are all set!

The extension works behind the scenes to integrate your library and your browsing activity.

How does it work?

Whenever you want to access or search the internet for articles, journals or databases, you may find content licensed by your library. But since you are not logged in with your library card, you do not have access. Until now, you had to manually check availability at

The Lean Library Browser Extension checks library availability automatically. If available, you are redirected automatically.
Note: you will be asked to login to with your library card.

There’s more!

If your library doesn’t have an article available, the Lean Library Browser Extension looks for an Open Access version of that article and offers a link in a pop-up.

Plus: Whenever you use Google Scholar or PubMed for searches, the Lean Library Browser Extension will ensure that library links (Look for “”) are displayed directly in Google Scholar and PubMed. That way you do not need to to manually setup your library in Google Scholar and PubMed.

More Information

Currently the browser extension is available for Google Chrome, Firefox, Edge, Safari and Opera, on Windows, MacOS and Linux. There is alos a version for Apple iOS devices. There is no official support for Android, but on Android, the Kiwi browser works.

The Lean Library Browser Extensions is managed by the National library of Luxembourg’s service. It is available for registered users of the National Library,, and

Data and privacy: The Lean Library browser extension has “privacy by design” as an objective. There is a privacy policy.

Download the National Library’s Flyer Lean Library (pdf)

Do you have any other questions or suggestions?

Have a look at the Lean Library Help Center or get in touch with the National Library team by email: