Em-dash Page Analyzer

Em-dash Page Analyzer scans the main content of any webpage and measures how often the em-dash character (—, Unicode U+2014) is used. The extension extracts the article body, counts characters, words, sentences, and em-dashes, then calculates ratios such as em-dashes per sentence, per 1,000 words, and the percentage of sentences containing at least one em-dash. Why does this matter? Em-dashes are often overused in automatically generated text. Popular AI writing tools such as ChatGPT, and others sometimes produce unusual punctuation patterns compared with human authors. This extension provides a simple heuristic that may flag text as “AI-like” if em-dash usage exceeds configurable thresholds. It is not proof, but it gives an extra signal for style analysis. Key Features 🔍 Analyze the main body of any webpage with one click 📊 Detect and count the em-dash (—) character only 📝 Report characters, words, sentences, and em-dash counts 📐 Show ratios: per sentence, per 1,000 words, and percent of sentences with em-dash 🚨 Flag possible AI-generated content if thresholds are exceeded 🔒 Local analysis only — no server calls, no data collection ⚡ Works through the toolbar popup or right-click context menu Use Cases ✍️ Writers and editors tracking punctuation style 🧪 Researchers studying text generation patterns 👀 Readers curious about whether an article may have been written with AI tools 📈 Content analysts monitoring writing quality on websites and blogs Disclaimer This extension provides descriptive statistics only. High em-dash frequency may suggest AI-generated writing but cannot confirm authorship. Always treat results as one indicator among many.