I'm trying to design an email text editor that has a preview window next to it. Should the preview be on the right or left side of the editor? My reasoning is that the preview should be on the left side because majority of people are right-dominant so the immediate actions (editor) should be on the right, but I've seen editors with the preview on the left so which is more natural?

  • Is this an editor where one can modify themes, CSS style changes, and design elements, similar to services like MailChimp?
    – Mike M
    Commented May 11, 2018 at 11:10
  • no, it's just a text editor with basic styling functions (bold, italics, link, list, etc)
    – gz17
    Commented May 11, 2018 at 23:55

1 Answer 1


It partly depends on cultural norms. In the West, we're trained to read left to right, so I actually feel it makes more sense here to have the preview to the right of the editor.

For similar reasons (reading left to right), vertical navigation is usually to the left of the content it controls.

  • (Except for the scroll-bar, which is to the right :-)). Although I agree that having the preview to the right of where you're typing feels more logical (disclaimer: I'm left-handed, so if the OP's theory is correct, I would say that!).
    – TripeHound
    Commented Jun 11, 2018 at 10:02

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