AI Writing Highlighter

About

AI Writing Highlighter helps you spot common AI-writing habits tracked by Wikipedia editors while reading the web.

It highlights visible article-like text that matches pattern data derived from Wikipedia's public Signs of AI writing page. The extension works locally in your browser: page text is not uploaded for analysis, no account is required, and there are no paid scans.

The score is a warning sign, not a verdict. Human writers can trigger these patterns, and AI-written pages can avoid them. Use it as a reading aid when you want to notice over-polished phrasing, vague attribution, stock transitions, chatbot artifacts, formatting tells, and other habits documented by Wikipedia editors.

How it works:
- Finds readable text on the page
- Checks paragraphs, headings, list items, and quotes against the current guide
- Underlines matched wording when Chrome can do so without rewriting the page
- Lightly shades flagged passages
- Shows a score, match count, section count, and top categories in the popup
- Refreshes the guide once per day

Privacy:
- No sign-up
- No analytics
- No telemetry
- No page text uploads
- No ChatGPT or model calls
- No paid scans

AI Writing Highlighter is an educational pattern matcher, not an AI detector. It does not prove who wrote a page.