Kiwix

Kiwix enables you to have the whole of Wikipedia (and many other Web sites like TED talks, Stack Exchange, Gutenberg Project library, WikiHow, Khan Academy, freeCodeCamp, Youtube channels and thousands of others) available wherever you go! On a boat, in the middle of nowhere, or when data charges are too high, Kiwix gives you access to the whole human knowledge for free. You don't need Internet, everything is stored on your mobile device! Offline!
Once Kiwix installed, then download the offline Web site of your choice; either in Kiwix directly or using a third-party app by accessing our completely free online library https://library.kiwix.org.
Enjoy best Kiwix features:
* Full local and remote library
* Multi Tabs View Browser
* Fulltext Search Engine
* Easy Navigation via TOC
* Article export to PDF
* Share via Social Networks
* Bookmarks
* Available and localized in many languages