- Write the draft in the editor. Headings, bold and italic, lists, quotes, code blocks and links are all carried across.
- Open Export in the sidebar and choose Copy to clipboard.
- Paste into the Substack editor with the normal paste shortcut, or
Ctrl/Cmd+Shift+Vif you want plain text instead. - Add the images in Substack, then publish.
Nothing is sent anywhere in that sequence: the clipboard belongs to your machine.