Guides / Sentence vs Title Case
Sentence case vs Title Case
Both styles are useful. Mixing them without a plan makes a site or document feel uneven. Use this page to pick one on purpose.
Definitions in plain words
Sentence case capitalizes the first letter of the text and the first letter after a sentence-ending mark (., !, or ?). Everything else goes to lower case. You then restore names and brands.
Title Case capitalizes the first letter of each word. It signals "this is a label or headline," not a full paragraph.
Side-by-side
Original: ship your order by friday
Title Case: Ship Your Order By Friday
Sentence: Ship your order by friday
(then fix): Ship your order by Friday
Where Sentence case wins
- Body paragraphs, help articles, and release notes.
- Form field helper text and error messages.
- Product descriptions that should feel conversational.
- Any block longer than about one line where Title Case would look shouty.
Where Title Case wins
- Blog post titles and newsletter subject lines (when your brand uses them).
- Navigation labels and card titles in a UI.
- Slide titles and section headers in a deck.
- Book-style chapter titles when that is the house style.
A simple team rule
Pick one style for headlines and one for body copy, write it down, and stick to it. Inconsistency across pages looks like a mistake even when each page is "correct" in isolation. If you inherit a messy paste, convert to lower case first, then apply the style you chose.
Convert now on the home tool, or review Title Case rules for post-edit tips.