- Polyglots
- Germanic
- Romance
- Turkic
- CJK
https://www.101languages.net/
http://www.omniglot.com/
http://mylanguages.org/
http://ilanguages.org/
https://ielanguages.com/languages.html
http://ilovelanguages.org/
http://gratisglobal.com/
https://pollylingu.al/en
https://www.grammatiken.de/
http://polymath.org/
http://learn101.org/
http://www.learnalanguage.com/
http://www.bbc.co.uk/languages/other/quickfix/
https://www.thoughtco.com/languages-4133094
http://speak7.com/
https://www.duolingo.com/
https://www.lingohut.com/
https://www.german-grammar.de/ - there are many other language sites
https://www.101languages.net/dictionaries/
https://www.indifferentlanguages.com/
http://www.wordreference.com/
https://en.wikipedia.org/wiki/List_of_Wiktionaries
https://glosbe.com/
https://www.contdict.com/
http://www.laetaprinco.org/
https://www.odaha.com/antoine-de-saint-exupery/maly-princ/the-little-prince
https://www.thefablecottage.com/
http://en.childrenslibrary.org/
https://www.grimmstories.com/
https://www.andersenstories.com/
https://worldstories.org.uk/library
https://www.lonweb.org/
https://en.wikisource.org/wiki/Main_Page
https://en.wikibooks.org/wiki/Main_Page
https://forvo.com/
https://rhinospike.com/
https://en.wiktionary.org/wiki/Category:Swadesh_lists_by_language
https://deutsch.lingolia.com/en/
https://www.deutschplus.net/
https://www.deutsch-lernen.com/
https://www.germanveryeasy.com/
http://germanforenglishspeakers.com/
http://german.speak7.com/
https://mein-deutschbuch.de/grammatik.html
https://ielanguages.com/German.html
https://en.easy-deutsch.de/german-grammar-overview/
https://www.thoughtco.com/german-grammar-4133067
https://www.dw.com/en/learn-german/s-2469
https://learngerman.dw.com/de/grammar
https://www.learn-german-smarter.com/
https://www.bbc.co.uk/bitesize/topics/zk92tfr
https://deutschlernerblog.de/grammatik-deutsch-lernen/
https://online-lernen.levrai.de/deutsch-uebungen/regeln_der_grammatik.htm
https://www.german-grammar.de/
https://www.thegermanproject.com/
https://www.cafe-lingua.de/deutsche-grammatik/deutsche-grammatik-uebersicht.php
https://grammis.ids-mannheim.de/systematische-grammatik
https://www.lernhelfer.de/schuelerlexikon/deutsch/kapitel/3-grammatik-und-rechtschreibung
https://www.worddive.com/grammar/de/deutsche-grammatik/
https://studyflix.de/deutsch/thema/grammatik-498
http://www.verbix.com/languages/german.html
https://www.verbformen.com/
https://conjd.cactus2000.de/index.en.php
https://www.duden.de/
https://www.dwds.de/
https://www.dict.cc/
https://www.101languages.net/german/german-english-dictionary/
http://www.wordreference.com/ende/
https://dict.tu-chemnitz.de/
http://de.thefreedictionary.com/
https://www.linguee.com/english-german
http://woerterbuchnetz.de
https://dict.leo.org/englisch-deutsch/
https://en.langenscheidt.com/
https://de.wiktionary.org/wiki/Wiktionary:Hauptseite
https://www.collinsdictionary.com/dictionary/german-english/
http://www.languagedaily.com/learn-german/vocabulary
https://en.wiktionary.org/wiki/Appendix:Germanic_Swadesh_lists
https://en.wiktionary.org/wiki/Appendix:German_Swadesh_list
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#German
https://en.wikipedia.org/wiki/Danish_grammar
http://fjern-uv.dk/gramma.php
http://fjern.egl.ku.dk/quiz/index.php?directory_id=72
http://grunnskoli.seltjarnarnes.is/myro/dansk/grammatik.htm
https://danskherognu.dk/intro
https://www.verbix.com/languages/danish.html
https://ordnet.dk/
https://www.ordbogen.com/en/
https://sproget.dk/
https://en.wiktionary.org/wiki/Appendix:Danish_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Germanic_Swadesh_lists
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Danish
https://en.wikipedia.org/wiki/Dutch_grammar
https://www.grammatiken.de/niederlaendische-grammatik-online-lernen/?id=Grammar01
http://www.dutchgrammar.com/
http://www.dutchgrammar.com/nl/
https://nl.wikibooks.org/wiki/Nederlands/Grammatica
https://ikschrijfbeter.nl/grammatica
https://ielanguages.com/dutch.html
https://www.verbix.com/languages/dutch.html
https://www.woorden.org/
https://www.mijnwoordenboek.nl/
https://www.encyclo.nl/
https://www.vertalen.nu/
https://www.vandale.nl/opzoeken
https://en.wiktionary.org/wiki/Appendix:Dutch_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Germanic_Swadesh_lists
https://en.wiktionary.org/wiki/Appendix:Frisian,_Dutch_and_German_Swadesh_lists
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Dutch
https://sv.wikipedia.org/wiki/Svensk_grammatik
http://www.ordklasser.se/grammatik.php
http://blog.lardigsvenska.com/p/grammar.html
https://www.worddive.com/grammar/sv/svensk-grammatik/
https://learningswedish.se/courses/1/pages/grammar
https://www.verbix.com/languages/swedish.html
https://svenska.se/
https://www.saob.se/
https://spraakbanken.gu.se/karp/#?mode=dalin
https://folkmun.se/
http://www.slangopedia.se/
https://en.wiktionary.org/wiki/Appendix:Swedish_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Germanic_Swadesh_lists
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Swedish
https://nn.wikipedia.org/wiki/Norsk
https://no.wikipedia.org/wiki/Norsk
https://www.ntnu.edu/web/now/1/grammar
https://www.ntnu.edu/web/now2/info/velkommen
https://typecraft.org/tc2wiki/A_Norwegian_Grammar_Sparrer
https://www.riksmalsforbundet.no/grammatikk-en-innforing/
https://www.verbix.com/languages/norwegian.html
https://ordbok.uib.no/
https://naob.no/
https://snl.no/
https://en.wiktionary.org/wiki/Appendix:Bokm%C3%A5l_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Nynorsk_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Germanic_Swadesh_lists
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Norwegian
https://www.spanishveryeasy.com/
https://espanol.lingolia.com/en/
http://spanish.speak7.com/
https://ielanguages.com/spanish.html
https://www.bbc.com/bitesize/subjects/z4dqxnb
http://www.hispanoteca.eu/Gram%C3%A1ticas/GRAMMATIK%20SPANISCH.htm
https://www.thespanishexperiment.com/
http://www.verbix.com/languages/spanish.html
https://www.spanishdict.com/
https://dle.rae.es/
https://www.wordreference.com/definicion/
https://www.spanishdict.com/
https://www.101languages.net/spanish/spanish-english-dictionary/
http://www.wordreference.com/enes/
http://es.thefreedictionary.com/
https://www.linguee.com/english-spanish
https://servicios.elpais.com/diccionarios/
https://es.wiktionary.org/wiki/Wikcionario:Portada
https://dem.colmex.mx/
https://www.linguee.es/
https://www.xn--sinnimo-n0a.es/
https://en.wiktionary.org/wiki/Appendix:Spanish_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Romance_Swadesh_lists
https://es.wikipedia.org/wiki/Lista_Swadesh
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Spanish
http://italian.speak7.com/
https://ielanguages.com/italian.html
http://www.italianlanguageguide.com/grammar/
http://www.oneworlditaliano.com/english/home.htm
https://grammar.collinsdictionary.com/italian-easy-learning
http://ilovelanguages.org/italian_grammar.php
http://www.locuta.com/eclassroom_gramm.html
http://parliamoitaliano.altervista.org/
https://www.lagrammaticaitaliana.it/
http://www.grammatica-italiana.it/
https://grammatica-italiana.dossier.net/
https://www.theitalianexperiment.com/
https://www.italian-verbs.com/
https://www.verbi-italiani.info/en/
https://www.verbix.com/languages/italian.html
https://www.dizionario-italiano.it/
https://www.grandidizionari.it/
http://www.sapere.it/sapere/dizionari.html
http://www.treccani.it/vocabolario/
https://dizionari.repubblica.it/
https://www.101languages.net/italian/italian-english-dictionary/
https://dizionari.corriere.it/
https://www.dizy.com/
https://www.garzantilinguistica.it/
https://en.wiktionary.org/wiki/Appendix:Italian_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Romance_Swadesh_lists
https://it.wikipedia.org/wiki/Lista_di_Swadesh
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Italian
https://francais.lingolia.com/en/grammar
http://french.speak7.com/
http://www.frenchlanguageguide.com/grammar/
https://www.thefrenchexperiment.com/
https://www.cordial.fr/grammaire/grammaire/GTM_0.htm
https://la-conjugaison.nouvelobs.com/regles/grammaire/
https://www.espacefrancais.com/grammaire/
http://www.conjugation-fr.com/
https://francais.lingolia.com/en/grammar/conjugator
https://leconjugueur.lefigaro.fr/ukindex.php
https://www.verbix.com/languages/french.html
https://www.vocabulix.com/conjugation/French-Verbs.html
https://www.the-conjugation.com/french/
http://les-verbes.com/
http://www.verb2verbe.com/
https://la-conjugaison.nouvelobs.com/
https://www.lalanguefrancaise.com/conjugaison/
https://www.larousse.fr/dictionnaires/francais-monolingue/
http://www.dictionary-fr.com/
https://www.cnrtl.fr/definition/
https://langue-francaise.tv5monde.com/decouvrir/dictionnaire
https://www.lepointdufle.net/p/dictionnaire.htm
http://dictionnaire.sensagent.leparisien.fr/index.html
https://www.linternaute.fr/dictionnaire/fr/
https://www.lalanguefrancaise.com/dictionnaire/
https://dvlf.uchicago.edu/
https://www.le-dictionnaire.com/
https://dictionnaire.lerobert.com/
https://en.wiktionary.org/wiki/Appendix:French_Swadesh_list
https://fr.wiktionary.org/wiki/Wiktionnaire:Liste_Swadesh
https://en.wiktionary.org/wiki/Appendix:Romance_Swadesh_lists
https://fr.wikipedia.org/wiki/Liste_Swadesh
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#French
https://fr.wiktionary.org/wiki/Wiktionnaire:Listes_de_fr%C3%A9quence#Fran%C3%A7ais
http://www.aulete.com.br/site.php?mdl=gramatica
https://www.todamateria.com.br/gramatica/
https://www.infoescola.com/portugues/
https://www.flip.pt/FLiP-On-line/Gramatica
https://www.verbix.com/languages/portuguese.html
https://www.dicio.com.br/
https://dicionario.priberam.org/
https://www.infopedia.pt/dicionarios/lingua-portuguesa
http://michaelis.uol.com.br/moderno-portugues/
https://dicionariocriativo.com.br/
http://www.aulete.com.br/
https://www.dicionarioinformal.com.br/
https://en.wiktionary.org/wiki/Appendix:Portuguese_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Romance_Swadesh_lists
https://pt.wikipedia.org/wiki/Lista_de_Swadesh
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Portuguese
http://www.turkishclass.com/turkish/lessons/turkish_classes.php
https://www.turkishexplained.com/
https://en.wikipedia.org/wiki/Turkish_grammar
https://cromwell-intl.com/turkish/
https://fluentinturkish.com/grammar
https://cooljugator.com/tr
https://www.verbix.com/languages/turkish.html
https://sozluk.gov.tr/
https://www.seslisozluk.net/
https://en.wiktionary.org/wiki/Appendix:Turkic_Swadesh_lists
https://en.wiktionary.org/wiki/Appendix:Turkish_Swadesh_list
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Turkish
https://resources.allsetlearning.com/chinese/grammar/Word_order
http://www.chinese-grammar.com/beginner/
https://www.chinese-tools.com/
https://www.101languages.net/chinese/
https://en.wikipedia.org/wiki/Kangxi_radical
https://www.mdbg.net/chinese/dictionary?page=radicals
https://en.wiktionary.org/wiki/Index:Chinese_radical
https://www.learnchineseez.com/
https://chinesepod.com/dictionary/english-chinese/
https://dict.cn/
https://www.chineseclass101.com/chinese-dictionary/
https://www.mdbg.net/chinese/dictionary
https://zh.wiktionary.org/wiki/Wiktionary:%E9%A6%96%E9%A1%B5
https://baike.baidu.com/
https://resources.allsetlearning.com/chinese/pronunciation/
https://en.wiktionary.org/wiki/Appendix:Mandarin_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Sino-Tibetan_Swadesh_lists
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Mandarin
https://en.wikibooks.org/wiki/Japanese/Grammar
https://www.wasabi-jpn.com/japanese-grammar/japanese-word-order/
https://www.thoughtco.com/japanese-4133062
https://8020japanese.com/japanese-sentence-structure/
https://pomax.github.io/nrGrammar/
https://www.tofugu.com/japanese/
https://www.tofugu.com/japanese/goroawase-japanese-numbers-wordplay/
http://www.kanjidamage.com/
https://files.tofugu.com/articles/japanese/2016-03-07-hiragana-mnemonics-chart/hiragana-mnemonics-chart.jpg
https://www.tofugu.com/japanese/kanji-radicals-mnemonic-method/#radicals-the-building-blocks-of-kanji
https://www.tanoshiijapanese.com/lessons/vocabulary_lessons.cfm
http://www.genetickanji.com/
http://japanese.gatech.edu/WebCTVista/JAPN1001/contents/Lesson02/hiragana/mnemonic-hiragana.html
http://japanese.gatech.edu/WebCTVista/JAPN1001/contents/Lesson02/katakana/mnemonic-katakana.html
https://jisho.org/
https://www.japandict.com/
https://en.wiktionary.org/wiki/Appendix:Japanese_Swadesh_list
https://en.wiktionary.org/wiki/Appendix:Japanese_Swadesh_list_(extended)
https://www.howtostudykorean.com/unit1/
https://en.wikibooks.org/wiki/Korean
https://en.wikipedia.org/wiki/Korean_grammar
https://www.howtostudykorean.com/unit0/
https://www.howtostudykorean.com/hanja-unit-1-lessons-1-20/
https://www.90daykorean.com/how-to-learn-the-korean-alphabet/
https://www.koreanclass101.com/learn-hangul/
https://zkorean.com/hangul
https://www.fluentu.com/blog/korean/learn-hangul/
https://www.optilingo.com/blog/korean/how-to-learn-korean-hangul-in-20-minutes/
https://dict.naver.com/
https://dic.daum.net/
https://www.ybmallinall.com/
https://stdict.korean.go.kr/main/main.do
https://opendict.korean.go.kr/dictionary/add
https://www.nongsaro.go.kr/portal/ps/psq/psqb/farmTermDicLst.ps
https://en.wiktionary.org/wiki/Appendix:Korean_Swadesh_list
https://en.wiktionary.org/wiki/Wiktionary:Frequency_lists#Korean
https://namu.wiki/