Choose the JLPT range for Kanji of the Day. Word of the Day is selected from words related to the daily kanji.
System follows your device appearance setting.
Textbook uses a pen-written style for large learning characters. Readings and sentences keep the modern font.
Common mode prefers WK readings. In +30 modes, extra readings need 30+ dictionary words and at least one example inside the selected max rank.
Controls the Similar Looking Kanji section on Kanji Detail. The marker shows candidates with top-word reading evidence.
Relaxed matching is better for touch screens and faster quiz drawing.
If disabled, add/remove common reading actions apply immediately.
Safe mode hides explicit or potentially offensive entries in words and examples.
Checking cloud sync...
Send a bug report or suggestion directly from the app.
Import replaces all current progress and settings with the selected backup.
Dictionary data is downloaded as you use the app. Tap to download everything now (~64 MB).
Storage estimate unavailable.
Progress, SRS, backups and account data are not removed by these cache actions.
日本GO十 is built on open data and assets generously shared by these projects. Thank you to their authors and contributors.
Data derived from CC BY-SA sources remains under the same license. See each project for full license terms.
Welcome to NihonGO十
Discover Japanese, organize what matters, practice several skills, and let reviews bring studied items back at the right time.
Recommended workflow
Search kanji or words by character, meaning, reading, or romaji. Open a result to see readings, examples, grammar, and stroke information.
Add useful kanji and words to custom groups, or start with a preset collection. Groups become focused study sets.
Use group flashcards for recall. Kanji Chain begins with a Study Deck that introduces meanings, active readings, and example words.
Build a quiz for the skill you want, then return for SRS reviews, reinforcement, and recent-mistake practice.
Feature reference
Switch between Kanji and Word search. Kanji sets can be filtered by JLPT or school grade, while Word search understands spelling, readings, romaji, and common conjugated forms.
Kanji Detail combines meanings, active readings, evidence words, similar kanji, components, and animated stroke order. Practice mode checks your strokes with optional hints. Word Detail adds readings, meanings, examples, pitch information when available, and collapsible grammar forms.
Standard quizzes cover kana, kanji, words, listening, drawing, and verb forms. On’yomi and Kun’yomi questions ask you to select every active reading. Kanji Chain teaches selected kanji first, retries missed steps once, and records a separate Chain Learned status.
Preset collections provide ready-made sets. Custom groups can be built one item at a time or imported from text. Open a group to inspect its items, start a focused quiz, or run flashcards in due-first order.
Correct and incorrect answers update spaced-repetition skills. Home shows reviews that are due, reinforcement candidates, search history, and recent mistakes. Statistics summarizes activity, accuracy, streaks, and study history.
Settings controls themes, Japanese character style, reading scope, drawing tolerance, content safety, backups, and offline downloads. An optional account synchronizes progress across devices. The install option is available on supported mobile browsers.
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On/Kun reading questions always use select-all with 8 options; difficulty still applies to other question types.