Why AI Text Has These Artifacts
Language models are trained on published writing — books, articles, and edited web copy — where typographically “correct” punctuation dominates: em dashes for asides, curly quotes, and real ellipsis characters. Chat interfaces then render answers as markdown, so bold text arrives as double asterisks and headings as hash marks when you copy it. None of this is wrong, but it looks out of place in an email, breaks plain-text forms, and has become a recognizable signature of machine-generated writing.
The Invisible-Character Problem
Beyond what you can see, copied text often carries characters you can’t: zero-width spaces, word joiners, non-breaking spaces, and soft hyphens. These survive pasting, break exact-match searches, corrupt CSV imports, and cause baffling syntax errors when they land inside code. Because most editors render them as nothing at all, the only way to deal with them is a tool that detects and strips them explicitly — this one reports exactly how many it found.
What This Tool Deliberately Doesn’t Do
This is a formatting cleaner, not a “humanizer.” It does not rewrite sentences, swap vocabulary, or try to defeat AI-content detectors — the words stay exactly as you pasted them. If you want to rephrase the text itself, use the AI paraphraser and then run the result through this cleaner for plain-text output.