The library

Language Learning

Every section of LinguaCommons in one place — structured guides, pronunciation, vocabulary decks, study methods, and the linguistics behind them. Evidence-based, and free to use.

Language GuidesBrowse study guides by your native language across 50+ target languages.

Vocabulary (SRS)Spaced-repetition decks of high-frequency words by language pair.

Methods & ToolsAnki, comprehensible input, shadowing, TPRS & more.

Apps & ProgramsHonest reviews — Duolingo, Ling, Pleco, Renshuu, HyperTTS & more.

Pronunciation GuidesWriting systems, IPA & common mistakes across dozens of languages.

Con-LangEsperanto, Novial, Ido, Interslavic, Klingon & Interlingua.

Ancient LanguagesLatin, Ancient Greek, Old English & more — history, grammar & where to start.

Endangered LanguagesCritically endangered languages — Manchu, Livonian, Tlingit, Ket, Yurok & Wymysorys.

DialectsRegional dialects contrasted with the standard language — starting with Bavarian German.

Famous LinguistsPlain-English profiles of Krashen, VanPatten, Swain, Long & Ellis.

Notation SystemsHow linguists write sound down — IPA & its extensions, ASCII encodings, ToBI, HamNoSys.