M-Dash Detector

About

Spot AI-generated text at a glance. M-Dash Detector highlights em-dashes (—) on any webpage—a typography pattern commonly favored by AI language models like ChatGPT, Claude, and Gemini.

🔍 HOW IT WORKS
Em-dashes are one of several stylistic "tells" that AI models tend to overuse compared to human writers. While not every em-dash means AI, frequent use can be a helpful signal. This extension automatically scans webpages and highlights em-dashes with a subtle, eye-catching animation.

✨ FEATURES
- Automatic Detection — Works instantly on every webpage you visit
- Visual Highlighting — Em-dashes are marked with a distinctive sparkle effect
- Count Badge — See at a glance how many em-dashes were found on a page
- Lightweight — No impact on browsing performance
- Privacy-First — Runs entirely in your browser, no data ever leaves your device

💡 PERFECT FOR
- Educators and students verifying content authenticity
- Journalists and researchers fact-checking sources
- Content moderators reviewing submissions
- Anyone curious about AI patterns in online text

⚙️ WORKS EVERYWHERE
The extension runs automatically on all websites with no configuration needed. Just install and browse—the extension does the rest.

📖 OPEN SOURCE
M-Dash Detector is free and open source. Check out the code, report bugs, or contribute on GitHub.

Note: Em-dash usage alone does not definitively indicate AI-generated text. This tool is meant to raise awareness, not provide proof. Always use critical thinking when evaluating content.