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Paper links to free PDFs

Checks for free PDFs from Google Scholar, Sci-Hub, LibGen, Anna's Archive, Sci-net, Semantic Scholar, Unpaywall, Openrxiv (medRxiv/bioRxiv), and ArXiv when hovering over a DOI link.

יוצר
BuiQuocDung1991
התקנות יומיות
1
סה"כ התקנות
16
דירוגים
0 0 0
גרסה
2.1
נוצר
19-07-2025
עודכן
22-10-2025
Size
13.1 קילו-בייט
רישיון
AGPL-3.0-or-later
חל על
כל האתרים

This userscript enhances webpages by detecting DOI links and showing a popup with free PDF sources when you hover over them. It checks availability across Sci-Hub, LibGen, Anna's Archive, Sci-net, and Google Scholar. The popup is dynamically positioned near the mouse and neatly organized into four rows for clarity. It works on all websites and only activates on mouseover to reduce network load. The script is ideal for researchers seeking quick access to academic papers.
Note:
- in Facebook, please turn on annoyances filters in ublock to use this script