Remove Claude’s formatting from Notion
Notion discards pasted HTML, so Claude's class names do not survive into a Notion page. What does survive is character-level: zero-width characters, exotic spaces, smart quotes and em dashes. Paste as plain text with Ctrl+Shift+V (Cmd+Shift+V), or paste normally and then check for invisible characters.
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 Notion keeps
- Notion converts pasted HTML into its own block format, so provider class names do not survive.
- Zero-width characters and exotic spaces do survive, because they are text rather than markup.
The fastest fix
Paste as plain text with Ctrl+Shift+V (Cmd+Shift+V), or paste normally and then check for invisible characters.
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.







