Language/Multiple-languages/Culture/Internet-resources-for-polyglots
Internet is a giant treasure. It provides so many services for free.
The services of websites listed here are all free, but you can consider donating or buying additional functions.
Basic course
https://en.wikibooks.org/wiki/Subject:Languages
https://fsi-languages.yojik.eu/
Pronunciation
Reading
Listening
http://www.listeningpractice.org/
Vocabulary
http://www.internetpolyglot.com/
https://www.learnwitholiver.com/
Online dictionary
Offline dictionary
Example sentences
Spelling and grammar checker
Pronunciation checker
https://speechpad.pw/prononce.php
Conjugation
Translator
https://www.bing.com/translator
Language encyclopedia
http://aboutworldlanguages.com/
Community
Questions and answers
Phrasebook
Language identifier
Radio and podcast
TV channels
http://www.lyngsat-stream.com/
Country and culture information
https://www.britannica.com/topic-browse/Countries-of-the-World/1
https://www.infoplease.com/countries
https://www.worldtravelguide.net/
http://www.commisceo-global.com/country-guides
http://guide.culturecrossing.net/index.php
International Phonetic Alphabet keyboard
AUTHOR
Contributors
GrimPixel, Vincent, Maintenance script, 116.206.245.151 and 2a02:908:1266:ede0:6965:afc5:a137:765e