Should tooltips in a desktop application end with a period? Is proper English required in this case?

Looking forward to any feedback or examples on this.

Thank you!

  • You should reference and follow any relevant writing style guides as a starting point.
    – Michael Lai
    Dec 1, 2021 at 22:35

1 Answer 1


Here is Material Design's guide to UX writing

enter image description here

The rule at most places I've been with dedicated UX Writers is:

  • No periods for a single UI string (in any place - tooltip, help text)
  • If there's more than one sentence, periods as normally applied

The general principle is to mercilessly cut down the amount of words / characters etc, prioritizing brevity.

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