Is it good or bad practice to repeat a split button's primary action? I've searched and didn't find anything definitive. I see it done both ways.

1 Answer 1


The rule is:

Nielsen/Norman group

  • A split button has a default action. Clicking "Insert" above performs a general "insert", but clicking on the split part opens a menu of related actions. The Zoom menu below is on a split button - clicking Stop Video performs the default action, and the split menu has several video-related actions.

Zoom call - video split button menu

  • A non-split button just opens the menu. It doesn't perform an action when you click on it. That's why you might see the label twice.

When should you use a split button? From the Nielsen-Norman article linked above:

Split buttons are for presenting several related tools if one option is used most frequently. Making the most commonly accessed option a default lowers the interaction cost to use that option since it removes the need to open the menu before selecting the item.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.