Title Case vs sentence case (and when to use each)
What each style capitalizes, why automatic Title Case is not AP or Chicago, and a one-click way to convert text in the browser.
The two everyday styles
Title Case capitalizes the first letter of every word: “How to Format a Headline.” Sentence case capitalizes only the start of the sentence (and usually proper names): “How to format a headline.”
Use Title Case for traditional print headlines and some book titles. Use sentence case for most UI copy, email subjects in a conversational tone, and documentation headings — it is easier to scan and harder to over-capitalize.
Automatic converters are a first pass
A one-click Title Case tool capitalizes every word, including “and,” “the,” and “of.” AP and Chicago style leave many of those small words lowercase. After converting, do a 10-second pass for names, acronyms, and those small words if the text will be published.
Changing case does not need a server. Paste the text, click the style, copy it back — useful when a CMS has locked you into screaming caps.
Try related tools
- Case converter — UPPERCASE, lowercase, Title Case, sentence case, and more.
- Text tools — Word counts, reading time, and one-click case transformations.
- Slug generator — Turn titles into URL-friendly slugs (kebab-case).