SLUM: The Shadow Library Uptime Monitor, tells you which sites are up or down. [0]

Working now: (I bookmarked these)

https://z-lib.gd/

https://1lib.sk/

https://z-lib.fm/

Oldies:

https://idoc.pub/

https://www.pdfdrive.com/

How to configure DNS over https: Cloudflare, YMMV [1]

EDIT TO ADD:

Info on libgen: [2]

Info on Zlibrary [3]

Library Genesis Guide Updated June 3, 2025 [4]

I did not see an onion address anywhere.

The zlibrary onion addresses check out.

> Current TOR Z-Library URL addresses. You must download the TOR browser to access these links. [5]

http://zlibrary24tuxziyiyfr7zd46ytefdqbqd2axkmxm4o5374ptpc52...

http://loginzlib2vrak5zzpcocc3ouizykn6k5qecgj2tzlnab5wcbqhem...

> TOR links change often.

[0] https://open-slum.org/

[1] https://developers.cloudflare.com/1.1.1.1/encryption/dns-ove...

[2] https://libgen.onl/

[3] https://libgen.onl/z-library/

[4] https://librarygenesis.net/

[5] https://zlibrary.st/