Japanese grammar checker

The tool analyzes Japanese text for grammar accuracy and style, designed for learners, teachers, editors, and teams producing Japanese content. It targets common issues such as particle selection and placement, verb conjugation across formal and informal forms, sentence-ending choices, honorific usage, and kanji-kana consistency. It provides structured feedback that highlights error categories, identifies root causes, and presents concrete corrections. It explains the rationale behind each change and suggests alternatives appropriate to formality level and audience. It works without relying on proprietary translations, focusing on native-like grammar patterns and standard usage.
How it works conceptually: the engine tokenizes input, performs morphological and syntactic analysis, and checks against a curated rule base plus a statistical confidence model. It flags likely mistakes, proposes edits, and attaches short explanations. Optional contextual hints can guide user choice, for example when two particles with similar functions might both be correct depending on nuance.
Who benefits and use cases: students practicing exams, teachers preparing materials, professional editors, and localization teams. Use cases include drafting emails, essays, study notes, or content for websites and apps. Unique value lies in combining instant feedback with concise explanations, high-contrast corrections, and exportable reports for audit trails and learning progress.