Stable signalNo paid features detectedHigh-risk permissions

Open Access Button

Open Access Button helps you download papers

Users30KCurrent public install base

Rating4.3Store average score

Reviews54Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Open Access Button Media preview

5 assets

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7-day rating change

Start

4.30

Latest

4.30

7-day rating change

0.00

2026年7月13日2026年7月19日

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7-day growthFlat

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Technical snapshot

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Version2.2.1

ManifestV3

Size61.96KiB

Languages13Deutsch / English / Indonesia +10

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

Open Access Button helps you download the PDFs of the papers you need.

One Button. Every Paper.™

Open Access Button finds free, legal versions of academic papers when paywalls get in the way. If the research exists open, the OAB will find it for you.

When you view a scientific paper, OAB detects its DOI (Digital Object Identifier) and checks whether there is available legal open access version.

Click the orange Open Access Button extension to download the PDF.

Knowledge yearns to be free.

Reviews

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Store average score4.3Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.1Average computed only from synced review bodies below

Reviews with text35Synced review bodies

Total ratings / reviews54Chrome Web Store public rating/review count

Store average score: 4.3. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

4★

3★

2★

1★

Khadidja Boutra2026年7月2日

top

Rafael Lorenzo Valenzuela2026年6月23日

great

Callum Chertavian2026年6月15日

made me write this

Mariya Farooq2026年6月15日

It opens the abstract, but when I am trying to click the "download this paper" option, it doesnt work and redirects to review and adding extension to chrome. I dont understand why is it so and how can i solve this issue. If someone knows, please let me know.

Anisha Soha2026年5月30日

IVE DONE EVERYTHING THEY MENTIONED. CLICKED ON THE DOWNLOAD THE PAPER BUTTON BUT ITS NOT GETTING DOWNLOADED AT ANY COST.

Xiuyu Zhu2026年4月27日

非常好用！帮了大忙！很喜欢！

Vignesh2026年4月26日

Asked for review, so i gave

Beo2026年4月21日

Works.

Leonardo Ventura2026年4月6日

EXCELENTE!

Paradise Kuna2026年2月27日

I didn't expect it to open even one article but it did straight away, wonderful extension.

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AI product read

A browser extension that detects DOIs (Digital Object Identifiers) on academic paper pages and redirects users to configurable external services to find free, legal open-access versions of those papers

Researchers and students frequently encounter paywalls when trying to access academic papers. This extension bypasses paywalls by finding legal, free open-access versions of the same papers from repositories and open-access sources.

1. User visits a page containing an academic paper on any publisher site 2. User clicks the Open Access Button extension icon in the browser toolbar 3. Extension injects a script to extract the DOI from meta tags or page-specific elements 4. Extension opens a new tab to the configured paper download service (default: https://annas-archive.gd/scidb/) with the DOI appended 5. The external service resolves the DOI and provides access to a free/open-access version of the paper

Target users: Researchers and academics / University students / Librarians / Healthcare professionals / Policy makers needing access to evidence-based research

Cannot verify the behavior of the default external service (annas-archive.gd/scidb/) or other configurable services—they may have their own auth/payment requirements
background.js is empty (0 bytes), so no background processing logic to analyze
The extension's options page allows arbitrary custom URLs for the paper search service, meaning the actual behavior depends on the user's chosen service

Monetization

No paid features detected

The extension is completely free with no paid tiers, feature gating, or payment processing. The heuristic-detected keywords 'paywall' and 'subscription' appear only in description text describing the PROBLEM the extension solves (accessing papers behind paywalls), not the extension's own pricing. extension-descriptions.md explicitly states: 'Free to Use: Completely free with no hidden costs or premium tiers' (line 37) and 'No subscriptions, no paywalls' (line 88). No Stripe, billing, license, or payment API calls exist in the source code. The external services the extension redirects to (e.g., annas-archive.gd, openaccessbutton.org) may have their own pricing, but the extension itself does not gate any features behind payment.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: No login UI, authentication flows, OAuth, or account creation exists in the extension. The extension uses chrome.storage only for local preferences (paperURL, showRating). The core workflow—extract DOI from the current page and redirect to an external paper download service—works entirely without any account or authentication.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage、activeTab、scripting
主机权限覆盖范围较宽

Publisher

PaperPanda

Independent publisher

Email: [email protected]
Phone: --
Address: Blackfriars Road London SE1 8PB GB

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