Learn

Four sites to learn a language.

Each site is a full place to learn one language with spaced repetition, not just a flashcard box. ChineseSRS is live; three more open in 2026 and 2027.

The method: spaced repetition

Each platform uses a spaced-repetition algorithm (SRS) that schedules your reviews at the optimal moment. You retain more by reviewing less, thanks to scientifically calculated intervals.

The platforms

ChineseSRS

OnlineHSK 1-6

Mandarin Chinese

Learn Mandarin Chinese from HSK 1 to HSK 6. Study characters, radicals, level-based grammar, and practise with graded readings and tone drills.

Spaced repetitionLevel-based grammarGraded readingsCharacter studyRadicalsDictionaryWriting sheetsTone training

Open ChineseSRS Details

EnglishSRS

July 2026CEFR A1-C2

English

Master English from A1 to C2. Level-based CEFR grammar courses, irregular verbs, phrasal verbs, and British vs American English comparison.

Spaced repetitionLevel-based grammarGraded readingsIrregular verbsPhrasal verbsDictionaryBritish / American EnglishConjugation

Details

JapaneseSRS

October 2026JLPT N5-N1

Japanese

Prepare for the JLPT from N5 to N1. Learn kanji, kana, Japanese grammar, and reinforce with graded readings and an interactive conjugator.

Spaced repetitionLevel-based grammarGraded readingsKanji studyHiragana & KatakanaDictionaryWriting sheetsConjugation

Details

KoreanSRS

February 2027TOPIK I-II

Korean

Progress in Korean from beginner to advanced. Discover hangul, politeness levels, counters, and practise with graded readings.

Spaced repetitionLevel-based grammarGraded readingsHangul alphabetPoliteness levelsDictionaryCountersParticles

Details