Text Case Conversion: Title Case vs. Sentence Case

Capitalization rules can be confusing. Should you capitalize every word in a headline? What about email subject lines? Let's break down the two most common styles: Title Case and Sentence Case.

What is Title Case?

In Title Case, the first letter of major words is capitalized. Example: The Quick Brown Fox Jumps Over the Lazy Dog*

• Best for: Book titles, h1 headlines, proper names.

What is Sentence Case?

In Sentence Case, only the first letter of the sentence (and proper nouns) is capitalized. Example: The quick brown fox jumps over the lazy dog.*
• Best for: Body text, h2-h6 subheadings, email subject lines (modern style).

Which Should You Use?

For UX Design

Modern user interfaces prefer Sentence Case. It is easier to scan and feels more conversational.

For Formal Writing

Academic papers and formal titles often require Title Case.

Tools to Help

Don't waste time manually editing. Use our Title Case Converter or Sentence Case Converter to switch styles instantly.