Japanese Word Frequency Checker
Paste any japanese text to see every word color-coded by JLPT level. Find out if a text matches your reading level.
Japanese Word Frequency Checker
Paste any japanese text below. We'll color-code every word by JLPT level and show you what percentage you'd understand at each proficiency level.
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See color-coded words
Know your reading level
Instant Analysis
Paste any text and see every word color-coded by CEFR level in seconds. No account needed.
JLPT Level Detection
See the overall difficulty level of any text and whether it matches your current proficiency.
Word-Level Detail
Drill down into each CEFR level to see exactly which words fall into each category.
Understanding Japanese Text Difficulty
Japanese text analysis is uniquely challenging because of the three writing systems (hiragana, katakana, and kanji). This tool segments your text into words and assigns each one a JLPT level from N5 (beginner) to N1 (advanced).
The analyzer uses a frequency-ranked Japanese dictionary with JLPT ground truth from the official N5-N1 vocabulary lists. Over 8,000 words are mapped to their correct JLPT level, with an additional 67,000+ words ranked by frequency.
Reading at the right level is especially important in Japanese where unknown kanji can make a text completely opaque. Use this tool to find your reading sweet spot and track your JLPT study progress.
Take your learning further