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Download PaperLens

The international universal Chromium package is available for manual installation. Chrome Web Store, Edge Add-ons, Firefox, and Safari channels will be updated here as they open.

Universal Chromium Package

Official international package for Chrome, Edge, Brave, Arc, and other Chromium browsers

Package Available

Download Package View install guide

Chrome

Chrome 100+ is supported through Chrome Web Store and the universal Chromium package

Available

Visit Store View install guide

Firefox

Firefox 110+ is supported through Firefox Add-ons

Available

Visit Store View install guide

Microsoft Edge

Edge 100+ is supported through the universal Chromium package while the add-ons listing is pending

Store Pending

View install guide

Safari

The Safari version is still in development

Store Pending

Chromium Manual Install

Universal Chromium Package Installation Guide

Use this package for Chrome, Edge, Brave, Arc, and other Chromium-based browsers when installing PaperLens manually.

Manual Install

Install the Official Universal Package

Download the zip from this page, unzip it first, then load the extracted folder from your browser's extensions page.

Download Package

Download the Package

Download the official PaperLens international Chromium package only from litlink.cc/en/download.

Unzip the File

Extract the zip to a stable folder and confirm that manifest.json is inside the extracted PaperLens folder.

Open Extensions

Open chrome://extensions, edge://extensions, or the equivalent extensions page in your Chromium browser.

Enable Developer Mode

Turn on Developer mode so the browser can load a local unpacked extension folder.

Load Unpacked

Click Load unpacked and choose the extracted PaperLens folder. Select the folder, not the zip file.

Pin PaperLens

Pin PaperLens to the toolbar so settings, sign-in, and status controls are easy to reach.

Refresh Research Pages

Refresh PubMed, Google Scholar, Web of Science, Semantic Scholar, or another supported research page to load PaperLens enhancements.

Manual install notes

Manual packages do not auto-update through a browser store. When a new package is published, replace the extracted folder and reload PaperLens from the extensions page. Only install packages downloaded from litlink.cc.

Chrome Install Guide

Chrome Extension Installation Guide

PaperLens can be installed from the Chrome Web Store, with the universal Chromium package still available for manual installation.

Method 1

Install from the Chrome Web Store

Recommended for regular users. Chrome verifies the store package automatically and future versions can update through the store.

Visit Store

Open the Store Page

Use the Chrome card on this page to open PaperLens in the Chrome Web Store.

Add to Chrome

Click Add to Chrome, confirm the permission prompt, and wait for the extension to finish installing.

Pin the Extension

Open the browser extension menu and pin PaperLens to the toolbar for settings, sign-in, and status access.

Refresh Research Pages

Return to PubMed, Google Scholar, Web of Science, Semantic Scholar, or another supported page and refresh it; PaperLens will load page enhancements in place.

Method 2

Install from a Zip Package (Unzip First)

Useful during store review or for test builds. Chrome cannot install by selecting the zip directly; unzip it first, then load the extracted extension folder.

Download Package

Download the Official Zip

Download the official PaperLens zip package only from the PaperLens download page. Do not use packages from unknown sources.

Unzip to a Stable Folder

Extract the zip to a stable location such as Downloads/PaperLens or Applications/PaperLens, and confirm that manifest.json is inside the folder. Do not delete or move this folder after loading it.

Open Extensions

Enter chrome://extensions in the Chrome address bar, then turn on Developer mode in the top-right corner.

Load the Unpacked Extension

Click Load unpacked and choose the extracted PaperLens folder. Select the folder, not the zip file.

Enable and Refresh

Make sure the PaperLens switch is on, then refresh supported research pages. To update a zip build later, replace the extracted folder and click Reload on the extension page.

Notes

Use the Chrome Web Store for automatic updates. The official universal package remains available for manual installation and testing; zip installation requires Developer mode and may show a developer-mode warning.

Firefox Install Guide

Firefox Extension Installation Guide

PaperLens can be installed from Firefox Add-ons. The downloadable manual package on this page is for Chromium-based browsers.

Method 1

Install from Firefox Add-ons

Recommended for official use. Firefox handles signing checks and future updates through the add-ons listing.

Visit Store

Open the Add-ons Page

Use the Firefox card on this page to open PaperLens in Firefox Add-ons.

Add to Firefox

Click Add to Firefox, confirm the permission prompt, and wait for the extension to finish installing.

Open or Pin PaperLens

Find PaperLens in the Firefox toolbar or extensions menu, then open settings, sign in, and confirm the status.

Refresh Research Pages

Return to PubMed, Google Scholar, Web of Science, Semantic Scholar, or another supported page and refresh it; PaperLens will load page enhancements in place.

Notes

Firefox users should use the Add-ons listing for official installation and updates. The manual zip package on this page is intended for Chromium-based browsers.

Edge Install Guide

Edge Extension Installation Guide

Edge uses the Chromium extension model. You can install the official universal Chromium package now; the Microsoft Edge Add-ons listing will be added when it is available.

Method 1

Install from Microsoft Edge Add-ons

Recommended for official use. Edge verifies the store package and can update future versions through the add-ons listing.

Open the Edge Add-ons Page

When the Edge Add-ons listing is available, use the Edge card on this page to open PaperLens in Microsoft Edge Add-ons.

Get the Extension

Click Get, confirm the permission prompt, and wait for the extension to finish installing.

Pin the Extension

Open the Edge extensions menu and pin PaperLens to the toolbar for settings, sign-in, and status access.

Refresh Research Pages

Return to PubMed, Google Scholar, Web of Science, Semantic Scholar, or another supported page and refresh it; PaperLens will load page enhancements in place.

Method 2

Install from a Zip Package (Unzip First)

Useful during store review or for test builds. Edge cannot install by selecting the zip directly; unzip it first, then load the extracted extension folder.

Download Package

Download the Official Zip

Download the official PaperLens zip package only from the PaperLens download page. Do not use packages from unknown sources.

Unzip to a Stable Folder

Extract the zip to a stable location and confirm that manifest.json is inside the folder. Do not delete or move this folder after loading it.

Open Extensions

Enter edge://extensions in the Edge address bar, then turn on Developer mode.

Load the Unpacked Extension

Click Load unpacked and choose the extracted PaperLens folder. Select the folder, not the zip file.

Enable and Refresh

Make sure the PaperLens switch is on, then refresh supported research pages. To update a zip build later, replace the extracted folder and click Reload on the extension page.

Notes

Use the official universal package while the Edge Add-ons listing is pending. Zip installation requires Developer mode, so Edge may show a developer-mode warning; this is expected for manually loaded extensions.

Changelog

v1.3.1June 22, 2026

Fixed some bugs.

v1.3.0June 18, 2026

Publishes an international universal Chromium package for manual installation on Chrome, Edge, Brave, Arc, and other Chromium browsers.
Updates JCR journal data to the 2025 release and keeps journal history bundles current.
Improves AI output-language handling for article interpretation and selected-text translation workflows.
Adds PubMed homepage query enhancement placement and refreshes global account, checkout, refund, and support wording.

v1.0.0May 31, 2026

First Chrome listing candidate completed for launch preparation on Chrome, Edge, and other Chromium browsers.
Supports page enhancements across PubMed, Google Scholar, Web of Science, Semantic Scholar, DBLP, selected publisher pages, and preprint platforms.
Shows journal metrics and labels on result lists and article pages, including Impact Factor, JCR quartile, CAS division, SJR, Chinese core journal tags, CCF labels, and CAS warning labels where available.
Improves the PubMed workflow with result filtering and sorting, batch analysis, abstract previews, citations and related papers, RIS / BibTeX / MEDLINE / CSV export, and AI-assisted PubMed query enhancement.
Supports local paper saving, signed-in cloud sync, cross-device library access, and user-initiated export to a local Zotero connector.
Adds AI-assisted reading for article interpretation, selected-text translation and summarization, PubMed query strategy enhancement, plus user-configured OpenAI-compatible or Anthropic-compatible model endpoints.
Connects account services for email verification, membership entitlement, AI usage, checkout, refund requests, and invoice requests.

Requirements

System Requirements

Chromium Package

100+

Chrome

100+

Firefox

110+

Edge

100+

Safari

Coming soon