/h1
Heading 1
Adds a large heading. /h2 and /h3 make smaller ones.
Where you type it
In any Notion page (type / on a new line or in a block).
Add
The heading text.
Example
/h1
Press Esc to close the / menu if you just want to type a slash. A real command built into Notion, checked against its own help pages in November 2026. Official help page