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Library proxy: Home

Information about the library's proxy, and instructions for creating bookmarklets.

Off-Campus Access to Library Resources

While the UC Berkeley Library provides access to thousands of online resources (ejournals, ebooks, databases, etc.) most of them are only available to authorized users (current faculty, students and staff and, in most cases, on-site visitors).

Without the right set up that allows you to authenticate, you will be locked out of these resources.

How to Access Online Resources

There are several ways to connect to library resources from off-campus.

  1. Go to UC Library SearchDatabases A-Z list, and other library websites to look up licensed (subscribed) resources. Links listed on these sites prompt users to login with CalNet.
  2. To access licensed (subscribed) library resources found via non-UCB sites such as Google, Google Scholar, email links, Twitter, etc, you can add the libproxy bookmarklet to your browser's toolbar. Then, whenever you land on a licensed library resource, click on the libproxy bookmarklet to enable authentication.
  3. You can also download the campus VPN (Virtual Private Network) client to access licensed resources.

No authentication needed

No further authentication is needed if you are:

  • using a computer or device that is on the UC Berkeley campus network.
  • using a computer or device that is connected to the campus network via eduroam.
  • using a public workstation in a UC Berkeley Library.
  • using a computer or device that is connected to the campus network via the campus VPN.

What is libproxy?

Libproxy allows UC Berkeley students, faculty and staff to access licensed (subscribed) library resources from off-campus. When you click on a link to a licensed resource that has been configured for libproxy, you will be prompted to authenticate. You will be prompted to enter your CalNet information, or your PIN / Cal 1 card number.

Using libproxy + help

Chrome: It is not possible to install the libproxy bookmarklet in Chrome on some Mac operating systems (e.g., Mojave and High Sierra). If you must use Chrome as your browser you will need to install an EZproxy browser extension. Search Google for "EZproxy extension."
Safari: It is possible to install the libproxy bookmarklet in Safari if your Mac OS is Mojave or High Sierra. Please consider using Safari as your browser.

It is not possible to install the libproxy bookmarklet in Edge. Please use IE, Chrome, or Firefox.

Need more help?

Please contact us via chat or email.

Conditions of Use

Terms and conditions for online resources generally prohibit users from systematic or programmatic downloading, downloading entire issues of journals, or from transmitting licensed content to unauthorized users (i.e. posting an article on a publicly available website). For more information see: Conditions of Use and Licensing Restrictions for Electronic Resources.