Setsumei

Understand the grammar inside real Japanese sentences.

Setsumei turns Japanese text into a clear, approachable grammar lesson. Type or paste a sentence, choose an example, or search the included Japanese–English sentence library. Setsumei highlights the grammar it recognizes and keeps the original sentence, readings, and explanations together.

SETSUMEI PREMIUM

Setsumei is free to try. A one-time purchase of Setsumei Premium unlocks:

• Unlimited sentence analysis
• The full N1–N5 grammar library
• Unlimited spaced review
• Unlimited saved sentences and grammar points

No subscription.

LEARN IN CONTEXT

• See grammar patterns highlighted directly in the sentence
• Read word pronunciations and dictionary forms
• Explore plain-English meanings, formations, nuances, and examples
• Use estimated JLPT levels as a study guide
• Search a large offline Japanese–English sentence library

BUILD YOUR GRAMMAR LIBRARY

• Save useful grammar points with their sentence context
• Add personal notes
• Browse grammar by communicative purpose
• Mark grammar as Saved or Mastered
• Revisit sentence history and saved sentences
• Copy and share lessons

REVIEW WHAT YOU SAVE

• Practice grammar in the sentence context where you found it
• Recall what each pattern contributes before revealing the explanation
• Use Again, Hard, and Good to space difficult points sooner and remembered points farther apart
• Keep review progress on device

PRIVATE BY DESIGN

Grammar detection, word analysis, and contextual classification run on your device using bundled resources. Setsumei requires no account and includes no ads, third-party analytics, or paid AI service.

Grammar recognition and explanations are continually being improved. JLPT levels are estimates because the current JLPT does not publish official grammar lists.