Check a Japanese text: vocabulary and level
Paste in a Japanese text. This page holds it up against its 6134 words and tells you how many of them sit at which level — and which words do not appear here at all. Everything runs in your browser; the text never leaves your device.
What this analysis tells you — and what it does not
“Not on this site” does not mean “hard”. Names, technical terms, place names and everything there is no word list for here end up in the same place. The list is a suggestion for looking things up, not an inventory of your gaps.
The estimated level is the one at which 95 % of the words are covered — not the highest one that occurs. A single word from a high level does not make a text of that level. 95 % is the threshold from which a text can be read without looking something up every third sentence.
Inflected forms are recognised. They are generated when this site is built, not guessed in the browser; which ones they are is set out in tools/textindex.py.
Example sentences
N5 この辺の海はとても青いです。The sea round here is very blue.
N5 夕方から雨が降ります。It will rain from the early evening.
N5 どうもありがとうございました。Thank you very much.
N4 猫が窓から逃げてしまいました。The cat got out through the window.
N4 雨の日の昼休みは、たいてい図書室で過ごす。On rainy days I usually spend lunchtime in the school library.
N4 お店の人がおしぼりを持ってきました。The waiter brought us hand towels.
N3 部長は今日、朝から機嫌が悪い。The department head has been in a bad mood since this morning.
N3 上司の家に行くと、気を使って疲れます。Visiting my boss's house wears me out, because I have to be on my best behaviour.
N3 砂糖を小さじ一杯入れます。Add one teaspoon of sugar.
N2 微妙な判定に、会場がざわついた。A murmur went round the crowd at the borderline decision.
N2 前例がないからといって、断る理由にはならない。The lack of a precedent is no reason to say no.
N2 十年先を見通して、計画を立てる必要がある。We need to plan with ten years ahead in view.