Please visit for an up-to-date download link, which will take you to the App Store. Install the application, like any other app.

Installation & selecting your institution

After installing the application, please open it and click the "Open Safari Extension Preferences..." button, highlighted in orange below. This is the only time that you need to open the application.

Ensure to activate the check box next to Lean Library.

You can now close Safari Preferences and click the Lean Library icon, which was added to the Safari toolbar. You'll find it either to the left or right of the address bar, as highlighted in the below screenshot.

A pop-over will open and you can start typing your institution's name in the area highlighted in orange. You can type any part of the institution's name. Once you've identified your institute, select it and click on Save.

If your institution has enabled bilingual pop-up settings, you can also select your preferred language here too.

Please note that some institutions will offer you the opportunity to Skip the popup and automate my access.  

If you don't select this option, we'll show you the Lean Library extension on domains your library subscribes to and offer to take you to a proxied version.

If you select this option, we'll take you straight to the proxied version.

These redirections are only active on domains, which are licensed by your library.

You're all done now!

How to test things are working?

We'd recommend that you visit a library resource, such as or, and see the extension in action. 

Please also note that some actions are only active when you're not within your university IP range, so you might not see anything until you are off-campus.

How do I change settings later?

Identify the Lean Library extension icon in your toolbar and click on it (on any website) and then select the gear icon.

How to disable or uninstall

Open Safari Preferences by clicking on Safari > Preference or press the cmd / ⌘ and , (comma) key at the same time, while Safari is active.

From the toolbar, select Extensions and then the Lean Library extension

Run into any trouble?

Please contact us at and provide us with the version of macOS (click on  and then select About This Mac) and the version of Safari (click on Safari > About Safari), plus a screenshot that could show the problem you've run into.

How to take a screenshot:
Take a screenshot and annotate it (works in macOS 10.15 / Mojave) - press ⌘+⇧+5 (cmd + shift + 5) and then take the screenshot you want. The screenshot will show in the bottom right of your screen - click to annotate!

⌘+⇧+4 = Select area or  press space for a window
⌘+⇧+3 = Entire screen


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