Sumigo: Learn Japanese

Sumigo is a complete companion for learning Japanese — but it's the details that set it apart: usage notes that teach real nuance, a built-in spaced-repetition trainer, and a calm, paper-inspired design made for focused study. WHAT MAKES SUMIGO DIFFERENT • Usage notes, not just translations. Many entries include a clear note on nuance — when a word is polite or casual, which synonym to pick, and the mistakes learners commonly make. • Built-in spaced-repetition flashcards. Save any word and review it on a smart schedule that adapts to how well you know it. Practice in both directions — Japanese→English and English→Japanese — each scheduled independently. • A design you'll actually enjoy. Quiet typography, soft ink tones, and an uncluttered layout — built for concentration, not gamified noise. EVERYTHING ELSE YOU NEED Dictionary • 200,000+ Japanese–English entries, plus proper names • Search by kanji, kana, or romaji — or draw a character by hand • Furigana readings and full conjugation tables for verbs and adjectives Kanji • 13,000+ kanji with readings, meanings, and JLPT levels • Animated stroke-order diagrams to learn and trace Grammar • 800+ grammar points from N5 to N1, with explanations, formation rules, and examples Example sentences • Tens of thousands of natural sentences — tap any word to open its entry Stories • Read classic Japanese folk tales with word-by-word tokenization • Audio narration that highlights each line as it's read, with English translations WHY SUMIGO • Works 100% offline — study anywhere • No ads, no tracking, no account required Start with a single word today and build toward reading real Japanese.