[easton]

If anyone is stuck somewhere like this, Stack Overflow has dumps regularly updated on archive.org -- https://archive.org/download/stackexchange/

Dash (or its Windows equivalent, name escapes me) can be used to view and search these dumps (as well as dumps from GitHub, language docs, etc) offline: https://kapeli.com/dash

[ravio64]

Windows equilevant is zeal, which dash is a mac version of :)

[Karawebnetwork]

Another alternative to Zeal is DevDocs with its offline mode. https://devdocs.io/offline

[lgvld]

Amazing website/tool, thank you! ;-)

[youainti]

zeal also has a linux version

[bluedino]

Archive.org is also blocked in a lot of these places.