Access research papers in one click.

Save time accessing full-text PDFs with the free Kopernio browser plugin.

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4.8 stars in the Chrome Web Store
Used by over 250,000 researchers

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Stop clicking and start reading.

Save time navigating paywalls, logins and redirects. Kopernio helps you get to your full-text PDF faster.

With Kopernio

One click PDF access

Without Kopernio

Lots of clicking, logins, redirects, and annoyance

Trusted by researchers around the world

Over 250,000 researchers, librarians and academic professionals speed up their research with Kopernio.

Kopernio is part of the Web of Science Group, the home of Web of Science, Publons and EndNote

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Fits into your existing workflow

Kopernio works on thousands of academic websites to get you full-text PDFs, whether you are on or off campus. Once you have the PDF, what you do with it is up to you.

(+ thousands more academic websites)
Kopernio gets you the PDF

How does Kopernio work?

Securely connect to your library's journal subscriptions

You are given the option to login with your library credentials. Kopernio stores these credentials in your browser. They are not stored on our servers and are never shared, or used for any other purpose except accessing your library subscriptions.

Subscription and Open Access combined

Kopernio harnesses your library subscriptions to get you the highest quality PDFs. When your subscriptions do not grant you access, Kopernio will search for an open access alternative from its vast database of Open Access articles.

One-click access to PDFs on article pages

When you visit an article page on any academic website, Kopernio searches for full text PDFs and gives you one-click access via a button that is in a consistent, convenient place.

One-click access to PDFs from search pages

When using various academic search engines such as Web of Science, Pubmed, and Google Scholar, Kopernio searches for full texts PDFs and give you one-click access.

Recently accessed with one click

Try it for yourself.

Get started in two minutes and find out why over 250,000 researchers are already using Kopernio.

 Add to Chrome for free  Add to Firefox for free


4.8 stars in the Chrome Web Store

Sorry, we only support desktop browsers right now.

Please re-open this page using your PC or laptop to install the Kopernio plugin.

Sorry, we don't support your web browser yet.

If you want to give Kopernio a try please re-open this page using Google Chrome or Mozilla Firefox.

Thanks, we've sent a reminder to install Kopernio to your inbox.

There was a problem, please try again.