Remove Claude’s formatting from Gmail
Gmail preserves pasted HTML, so copying straight from Claude carries its class names — the ones containing “claude” — into an email. They are invisible while you read, but present in the source and readable by anyone who looks. Paste with Ctrl+Shift+V (Cmd+Shift+V) to paste without formatting.
Check yours first. Paste the text into the free checker and it lists every artifact with its exact position — no account, nothing uploaded, unlimited.
Check my text →What Gmail keeps
- Gmail composes in HTML by default, so a normal paste carries the markup into the sent message.
- The recipient can read the source of any email they receive.
The fastest fix
Paste with Ctrl+Shift+V (Cmd+Shift+V) to paste without formatting.
That handles the markup. It does not handle zero-width characters, non-breaking and exotic spaces, smart quotes or em dashes, which are text rather than formatting and survive every paste route on every platform.
