Free tool
Before you send
Paste what the AI wrote for you. We mark what to fix, what to check against your own records, and what makes it sound like a machine wrote it, and say why each one matters.
Free, no sign-up. The check runs on your device: nothing you paste is sent or saved.
Your draft
A normal email is under 200 words.
What we found
Paste a draft to check it.
- Fix before you send
- Check against your own records
- Sounds like AI
Every time, whatever we find
- Read it out loud once and change anything you would not say.
- Check every name, number and date against your own records.
- Keep private details out. See what not to paste into AI.
How the check works
The check is a set of plain rules that runs in your browser, not another AI. It looks for the habits that give AI writing away and the details AI gets wrong with a straight face. It cannot tell whether a fact is true: it points at the ones worth a second look. A clean result means none of the usual tells, not that the message is ready, so still read it once before you send.
The kind of message matters. A normal text is a line or two, a normal email is a short paragraph or three, and a review reply is three or four sentences, so the length and formatting checks change with your choice above.
Need a better draft to start from? Browse the prompt library