BG
Interactive Japanese Language Platform

日本語への道を、
Practice with Purpose.

日本語の教育者と学習者のための遊び場。An interactive platform to learn and practice Japanese. Bridging traditional classroom pedagogy with modern tools for vocabulary, grammar, and reading.

For Educators & Self-Study

教材・資料

Printable Study Sheets

Downloadable Hiragana & Katakana stroke-order packets, particle desk mats, and counter charts with furigana.

View Printables →

Interactive Modules 実践演習

Showing 20 modules

辞書

Curriculum & JLPT Dictionary

Search 13,000+ vocabulary words and 2,200+ kanji by textbook chapter, JLPT level, English, romaji, or kanji with stroke order and usage examples.

Open Dictionary →

単語

Vocabulary

Bi-directional vocabulary drills aligned with major classroom textbooks and JLPT N5–N1.

Start Practice →

訓練場

Training Ground

Practice verb and adjective conjugations with instant feedback. Master the te-form, past tense, and more.

Enter Training Ground →

文法

Grammar

Practice essential grammar patterns chapter-by-chapter across standard classroom curricula and JLPT levels with interactive fill-in-the-blank and translation drills.

Start Quiz →

助詞

Particles

Practice how Japanese particles mark topics, subjects, locations, and targets through fill-in-the-blank drills, matching rounds, and sentence building.

Start Practice →

助数詞

Counter Culture

Master Japanese counters with interactive quizzes, sorting, and typing games. Stop saying 一つ for everything!

Start Counting →

オノマトペ

Sound & Feeling Game

Read infinite AI-generated descriptive scenarios and guess the perfect Japanese sound word to match the feeling.

Play Scenario Match →

日本地理

Geography & Culture

Explore all 8 regions and 47 prefectures, master the 18 trick capitals, discover regional Meibutsu & local mascots, and collect Eki-Stamps.

Open Atlas →

言霊

Kotodama — Spirit of Words

A roguelite Hanafuda deckbuilder where Japanese recall powers every turn across Kana, Vocabulary, Kanji, and Grammar.

Enter Kotodama →

花札 こいこい

Hanafuda Koi-Koi

Play traditional 48-card Japanese Hanafuda Koi-Koi against Ikigai with built-in lunar month and Yaku helpers.

Play Koi-Koi →
NEW

熟語リンク

Jukugo Matrix

Deduce the missing center kanji that completes four surrounding two-kanji compounds (和同開珎).

Play Matrix →

言葉

Kotoba Wordle

Guess the daily 3 and 4-sound Kana words curated from standard high school and university curricula.

Play Daily Word →

しりとり

Shiritori

Master vocabulary with the classic word chain game. Validated sounds, JLPT tags, and recursive AI counter-plays.

Start Game →
NEW

作文道場

Composition & Essay Lab

Paste or write a Japanese paragraph or essay for sentence-by-sentence grammar, particle, register, and natural phrasing feedback calibrated to your textbook level.

Open Writing Lab →

書道

Calligraphy Sandbox

Practice drawing Kana and Joyo Kanji with your finger or mouse using the interactive grading engine.

Enter Sandbox →

漢字錬金術

Kanji Forging Lab

Learn the shapes, names, and meanings of common radicals, then combine them in the AI forge to discover new Kanji.

Enter The Lab →

多読

Tadoku Library

A curated collection of bilingual reading passages separated by JLPT level with toggleable Furigana.

Enter Lounge →

会話

Practical Communication

Situational roleplay sessions with adaptive scaffolding and strict speech register enforcement.

Enter Session →

図書室

Resource Library

A comprehensive collection of interactive master guides covering particles, conjugation, conditionals, Hanafuda, and Genkō Yōshi.

Open Library →

文化ノート

Culture Notes

Short articles and cultural insights exploring Japanese history, seasonal traditions, daily life, and the cultural context behind the language.

Read Articles →

Community & Profile プロフィール

What's New / Changelog更新履歴

Recent classroom, dictionary, and study tool improvements

Nov 12, 2026
  • Hanafuda Koi-Koi

    Add real-time 2-Player Room multiplayer with SSE and polling fallback.

  • Platform Updates

    Pause boss damage during chapter-aware stroke-order barriers with teammate assist, show Hanafuda card draws/Yaku radar, and tighten Jukugo N5 filtering.

  • Platform Updates

    Add Jukugo Compound Matrix (和同開珎) game with Daily Challenge, Profile stats, Daily Quests, and SEO.

  • Community & Supporters

    Welcome Sparks Sensei to Featured Supporters on the Wall of Gratitude.

  • Assignment Studio & Printables

    Prevent activeHw progress updates from resetting prompts or feedback in drill, grammar, counters, and geography.

  • Vocabulary & SRS

    Show explicit ✓ Correct! / ✗ Incorrect feedback and answer reveal pause during /vocab assignments.

  • Assignment Studio & Printables

    Add Digraphs/Yoon, Full Combo presets, and collapsible section arrows across /assign.

  • Dictionary & Kanji

    Preserve selected kanji across Trace and Memory tabs in /calligraphy.

Nov 11, 2026
  • Quality & Fixes

    Filter Foundations sub-panel immediately when switching between Kana, Numbers, and Time tabs.

  • Quality & Fixes

    Remove suffix spoilers from target badges, add active target pills tray, and auto-apply settings.

  • Platform Updates

    Wire 3-track Training Ground UI with Time drills, Verb ID mode, and diagnostic anatomy.

  • Community & Supporters

    Add drillHelpers engine for Time, Core 30 verbs, and morphology anatomy, and graduate games from beta.

  • Platform Updates

    Add bilingual English and Japanese toggle on about page.

  • Live Classroom Raids

    Stabilize question cycling, add furigana scaffolding, wire 5-boss catalog with authentic sprites, fix lobby layout, and unlock Web Audio.

  • Live Classroom Raids

    Add real-time collaborative Kyubi no Kitsune classroom boss raid on /live.

  • Assignment Studio & Printables

    Add printable quiz and trouble-spot reteach generator, changelog drawer.

  • Vocabulary & SRS

    Add flexible parenthetical/ellipsis answer matching and review pause on mistakes.

  • Dictionary & Kanji

    Add freehand kanji drawing pad, stroke-recall writing mode, and update shop subdomain.

  • Offline Reference

    Add offline service worker caching for printables, guides, strokes, and range-safe audio.

  • Flexible Answer Matching

    Typing mode in /vocab and assignments now accepts loose parentheticals (e.g., (oh) well accepts well), trailing dots/ellipses, and verb infinitives.

  • Mistake Review Pause

    Incorrect answers in /vocab now hold for review with the target reading and pitch-accent graph before advancing.

  • Tokyo Pitch-Accent Contours

    Added visual melody step lines and category badges across Dictionary and Vocab.

  • Weak Spots Notebook (弱点帳)

    Missed items across Kotodama, drills, and particles automatically collect in your study tray with 1-click SRS enrollment.

  • Offline Reference Cache

    Printable sheets, guides, and audio are cached locally for resilient study without school Wi-Fi dropouts.

  • Handwriting & Freehand Draw

    Added finger/mouse kanji drawing pad in /dictionary and handwriting recall mode in /vocab.

Nov 10, 2026
  • Community & Supporters

    Update shop card to midweight hoodie and add Japanese translations.

  • Community & Supporters

    Add clean shop card linking to Fourthwall.

  • Pitch-Accent & Voice

    Add Tokyo pitch-accent contours and zero-upload browser shadowing studio.

  • Vocabulary & SRS

    Add cross-module Mistake Catcher weak spots notebook with 1-click SRS enrollment.

  • Dictionary & Kanji

    Add multimodal camera and screenshot OCR lookup with SRS and calligraphy integration.

  • Offline Reference

    Add installable home-screen PWA manifest and self-hosted Web Push SRS review alerts.

Nov 9, 2026
  • Assignment Studio & Printables

    Add bilingual (ENG/JA) collapsible educator quick-start guide and workflow FAQ.

  • Assignment Studio & Printables

    Add 1-click assignment cloning, natural seat-code roster sorting, teacher student-preview mode, and projector trouble-spot warm-up.

  • Assignment Studio & Printables

    Add in-place student handle rename without data loss, separate homework seat codes from player handles, and block full real names.

  • Assignment Studio & Printables

    Add strict handle PIN lock, editable class tags, workspace rename, and clean feedback inbox.

Nov 8, 2026
  • Dictionary & Kanji

    Add items-start to card grid and filter unrelated mid-root substring matches.

  • Community & Supporters

    Add Culture Notes card to homepage grid and add kiwismile to Wall of Gratitude.

  • Community & Supporters

    Enforce gemini-3.5-flash-lite and gemini-3.8-flash high, fix dictionary AI lookup, add mobile dict nav, brighten dark furigana, and add JP toggle.

Have feedback, an issue to report, or a feature request? Use the Report an Issue button below or join our community Discord server.

Community Discord

Report an Issue / Feedback

Page path (/) is attached automatically.