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AI Writing Style Checker for Japanese

AI Writing Style Checker for Japanese

by: Assistant Gomez
Paste any Japanese text and instantly detect AI-generated phrasing. Scores your writing 0-100 for "AI-ness," highlights every detected pattern with a specific fix suggestion, and auto-generates a cleaned version. Scans 37 patterns across 6 categories: stock phrases, over-emphasis, syntax patterns, too-polished words, sentence-ending habits, and AI cliches. 100% offline, rule-based, no API. Single HTML file that works forever.
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The problem
AI-generated Japanese text has telltale patterns: "と言えるでしょう", "非常に重要", "多岐にわたる", "一助となれば幸いです". Readers and editors spot these instantly. If your content reads like a machine wrote it, credibility drops.

What this tool does
A single HTML file that scans Japanese text for 37 AI-writing patterns across 6 categories:

  1. 定番フレーズ (Stock phrases) — "と言えるでしょう", "いかがでしょうか"
  2. 過剰な強調 (Over-emphasis) — "非常に", "画期的", "不可欠"
  3. 構文パターン (Syntax patterns) — "しかしながら", "具体的には", "このように"
  4. 整いすぎ (Too polished) — "多岐にわたる", "包括的", "網羅的"
  5. 語尾パターン (Sentence-ending patterns) — "〜ましょう", "することが重要", "を図る"
  6. AI口癖 (AI habits) — "一助となれば幸いです", "ぜひご活用ください"

How it works

  • Paste text → Click check → Instant results
  • AI-ness score 0-100 (0 = fully human, 100 = clearly AI)
  • Every detected phrase highlighted with a specific replacement suggestion
  • Auto-generated cleaned version with one-click copy
  • 5 practical tips for avoiding AI-style writing

Key features

  • 37 detection patterns — curated from real AI output analysis
  • 6-category scoring — severity-weighted, density-normalized
  • Auto-fix — generates cleaned text with natural alternatives
  • 100% offline — no server, no API, no data leaves your browser
  • Works forever — no subscription, no token limit

Who it's for

  • Content writers who use AI drafting tools
  • Editors checking submitted articles for AI traces
  • Bloggers and note creators who want an authentic voice
  • Anyone publishing Japanese content who wants to avoid "AI smell"

Included

  • ai_style_checker_v1.html (single HTML file)
  • Works on Chrome, Firefox, Safari, Edge
  • No dependencies, no installation

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