Invisible Character Remover

Text copied out of an AI chat window carries characters you can't see — zero-width spaces, byte-order marks, non-breaking spaces. They survive the paste, they show up in the recipient's client, and they are the single most conclusive sign a message was pasted rather than written. Strip them here.

Runs in your browser — nothing is uploaded No sign-up
0 characters

Better: never paste them in the first place

Presend sits in your compose window and flags invisible characters before you send — along with the stock phrasing, leaked secrets and mismatched links that come with them.

Get the extension
More free tools
AI slop detector Clarity & ask check Subject line tester Pre-send check All tools