Legally get full text of scholarly articles as you browse.

Latest Version

Version
3.98
Update
July 29, 2021
Size
667KiB
Developer
unpaywall.org
Category
Users
800,000+
Rating
4.02439 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
*://*.oadoi.org/*
Storage
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Unpaywall Extension

Get full text of scholarly articles as you browse. When you view a research article, Unpaywall automatically looks for a copy in our index of 20 million free, legal fulltext PDFs. If we find one, click the green tab to read the article.

Unpaywall points you to legal, author-posted manuscripts that are hosted on university and government web servers. We are pointing to versions that have been posted with the full and explicit authorization of the publishers themselves.

These free, author-posted manuscripts are often called \"Green Open Access\" and are a longstanding and completely legal part of the scholarly communications ecosystem. The majority of scholarly journals permit authors to \"self-archive\" their papers on university and government web servers. It's these legally self-archived papers that Unpaywall helps users find. Any papers posted outside of publisher permissions are NOT included in our index.
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Source Manifest.json

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How to download and manually install Unpaywall extension for Chrome

Looking for a way to install Unpaywall extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Unpaywall extensions manually, this article outlines two simple methods to effortlessly install Unpaywall extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Unpaywall extension and manually install through Drag &Drop

If you ever need to manually install a Unpaywall extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Unpaywall Extension by clicking the "Download CRX" button on the website.

Look for the Unpaywall extension you wish to install. Go to the website and download the Unpaywall extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Unpaywall extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Unpaywall extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Unpaywall extension for Chrome and install in Developer Mode

This is another method to install Unpaywall extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Unpaywall extension file

Select and download the Unpaywall extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Unpaywall extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Unpaywall extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Unpaywall extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Unpaywall extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Sergio N. Bonacina (ID: 000000d05780d60f) Voted 1 ★ - Updated 11/06/2023 una mentira ya lo desinstalo

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Jo me (ID: 00000067c480be9c) Voted 5 ★ - Updated 10/18/2023 Works awesomely

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Mari Leigh (ID: 000000c105ee331e) Voted 5 ★ - Updated 10/16/2023 I love it. It can't always find free versions of research papers/journals, which is annoying, but most of the time for me it can. As much as I'd like to support the researchers and buy their research journals/papers, I cannot pay upwards of $40USD for a single article. I definitely suggest if you are a student who needs to use credible sources for research papers, I highly recommend this app. Like I said, it can't always find free versions, but it's worth a try :)

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Natanael Leitão (ID: 0000002246753335) Voted 1 ★ - Updated 10/09/2023 Works only on articles that are already free.

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Adrian Augustus (ID: 000000858e9ea418) Voted 3 ★ - Updated 09/20/2023 **Note its for scientific journals not mainsteam media like Wall Street Journal.** The extension name could perhaps be a little less generic. As for use in journals I typically access - this works, rarely. To concur with some of the feedback here - only occasionally does it procide access to a pdf, sometimes it fails when a pdf is available almost at the top of a google search, sometimes a bit more digging is required. Nice idea though.