Unpaywall

Name: Unpaywall
Rating: 3.99 (278 reviews)
Author: extension

Legally get full text of scholarly articles as you browse.

As of June 2026, Unpaywall has 900,000 users and a 3.99/5 rating from 278 reviews in the Workflow & Planning category.

extension Workflow & Planning★ Featured

Chrome Web Store ↗.crx

Users0%

900.0K

900,000

Rating−1.0%

3.99

278 reviews

Reviews+1.1%

278

Version

3.99

Manifest V3

History

2 snapshots

Tracking since Apr 23, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 23, 2026	900.0K	4.03	275	3.99
May 13, 2026	900.0K	4.00	277	3.99
Now	900.0K	3.99	278	3.99

Permissions & access

Permissions: storage
Host access: *://*.oadoi.org/*

Screenshots

About

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.