Sentence Case
Sentence case is the most natural capitalization style in everyday writing — only the first word of each sentence and proper nouns are capitalized. Use it for emails, blog posts, social media, and any context where a clean, readable tone matters.
Try the converter →Sentence case in the real world
Some of the world's most recognised brand taglines use sentence case — natural, direct, and easy to read.
Just do it.Nike
Think different.Apple
Because you're worth it.L'Oréal
What is sentence case:
- Sentence case is a capitalization style where only the first letter of the initial word in a sentence, title, or heading is capitalized. All subsequent words are written in lowercase, except for proper nouns, which are always capitalized regardless of their position.
- For example:
- “This is an example of sentence case.”
- “The quick brown fox jumps over the lazy dog.”
Importance of applying sentence case:
- Clarity: Sentence case improves clarity by making text more readable and easier to understand. It follows the natural structure of sentences, aiding in smoother information absorption.
- Uniformity: Employing sentence case consistently ensures that your writing appears refined and professional, reducing the visual noise caused by over-capitalization.
- Tone: Sentence case often conveys a friendly and accessible tone, which is advantageous in casual writing formats such as blogs, emails, and social media.
- Contemporary Appeal: Many modern brands and platforms, like Google and Slack, utilize sentence case to present a sleek and contemporary look.
Appropriate application of sentence casing:
- Sentence case is widely used in various contexts to enhance readability and maintain a conversational tone. Below are some common scenarios where sentence case is particularly appropriate:
- Body text: In the primary content of articles, essays, reports, and other written documents, sentence case is employed to ensure clarity and ease of reading.
- Titles and subtitles: Numerous style guides, including APA, advocate for the use of sentence case in titles and subtitles to maintain a consistent and professional appearance.
- Email subject lines: Using sentence case in email subject lines can render them more approachable and less formal, which is advantageous for casual or internal communications.
- Blog entries and social media: Sentence case is frequently used in blog entries and social media posts to foster a friendly and engaging tone.
- News Headlines: Newspapers and online news platforms often adopt sentence case for headlines to enhance readability and comprehension.
When not appropriate to apply sentence case to your text:
- Academic and formal titles: In scholarly writing, formal reports, and academic papers, title case is often preferred. This includes the titles of books, research articles, and dissertations.
- Brand names and trademarks: Brand names, trademarks, and certain proper nouns should always be capitalized according to their official styling, which often uses title case or all capital letters.
- Legal documents: Legal documents and contracts typically use title case for headings and important sections to ensure clarity and emphasis.
- Professional resumes and CVs: In professional resumes and CVs, title case is commonly used for section headings to maintain a polished and formal appearance.
- Formal invitations and announcements: For formal events, such as weddings or official ceremonies, title case is often used in invitations and announcements to convey a sense of formality and importance.
How to apply sentence case to your text:
- Capitalize the first word of the sentence and lowercase all other words, except for proper nouns (names of people, places, etc.).
- For example:
- Correct: “This is an example of sentence case.”
- Incorrect: “This Is An Example Of Sentence Case.”
Frequently Asked Questions
- Sentence case capitalizes only the first word of a sentence and proper nouns — everything else stays lowercase. Title case capitalizes the first letter of most words, skipping minor words like "a", "the", "and", and "of" unless they appear at the start or end of the title.
- Example — Sentence case: "The quick brown fox jumps over the lazy dog."
- Example — Title case: "The Quick Brown Fox Jumps over the Lazy Dog."
- No. Proper nouns — names of people, places, brands, and organizations — always stay capitalized regardless of their position in the sentence. Sentence case only controls the capitalization of the first word; everything else follows standard grammar rules.
- Example: "apple is building a new campus in austin, texas." → "Apple is building a new campus in Austin, Texas."
- Body text — articles, essays, reports, and emails all use sentence case by default.
- Blog post headings — many modern publications prefer sentence case for a friendlier, less formal tone.
- Social media captions — sentence case reads naturally in feeds and feels less aggressive than title case.
- UI copy and app interfaces — sentence case is the standard for buttons, labels, and error messages in most design systems (Google Material Design, Apple HIG).
- Email subject lines for internal or casual communications.
- Lowercase converts every single letter to lowercase — including the first word of a sentence and all proper nouns. Sentence case preserves standard capitalization: the first word of each sentence is capitalized, and proper nouns remain capitalized.
- Example — Lowercase: "the quick brown fox."
- Example — Sentence case: "The quick brown fox."
- Yes, for the most part. Standard written English follows sentence case — you capitalize the first word of a sentence and proper nouns, and leave everything else lowercase. The converter is useful when you have text that has been incorrectly cased (e.g. ALL CAPS, Title Case in the wrong context, or inconsistent mixed casing) and you need to normalize it quickly.
- Yes. Paste your text — no matter how long — into the converter on the home page, click "Sentence case", and the entire text is converted instantly. You can then copy it with one click.
- Keep in mind that automated tools cannot perfectly detect every proper noun, so it is always worth a quick review after converting a long or specialized document.