Sentence Case Converter

Convert your text to Sentence Case automatically. The first letter of each sentence is capitalized, while the rest of the text is adjusted to lowercase.

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About this tool

This tool converts any text to Sentence Case automatically. The first letter of the text and the first letter of each sentence are converted to uppercase, while all other letters are transformed to lowercase. For headlines and headings, use Title Case Converter.

What the tool does

Converts any text to sentence case, including paragraphs written entirely in capitals
Preserves accents, numbers and punctuation: only the case of the letters changes
Runs entirely in your browser, so the text you paste never leaves your device

How to use it

1

Paste the text

Enter the content you want to convert to Sentence Case in the text field.

2

Convert the text

Click the conversion button to apply the formatting.

3

Check and copy

Review the result and copy the text to use it wherever you want.

When to use it

  • Text typed in ALL CAPSWhen the text is entirely in uppercase letters and needs to be converted into a more readable format.
  • Adherence to editorial standardsWhen a style guide requires headings in Sentence Case, the tool helps you adapt the text quickly.
  • Texts received from clients or colleaguesFix messages and content sent with improper capitalization before using them in documents, reports, or publications.
  • Headings for blogs and digital publicationsMany websites and platforms adopt Sentence Case in their headings to maintain a more consistent presentation.

Questions & Answers

What is sentence case?

Sentence Case is a capitalization style where only the first letter of the first word of each sentence is capitalized, while all other words remain lowercase, except when language rules require the use of uppercase letters, such as for proper nouns, acronyms, and abbreviations. This format is the standard used in running text, emails, documents, articles, and most written content, providing a more natural and consistent reading experience.

Does it keep proper nouns capitalized?

No. Since proper nouns, acronyms, and other words that should remain capitalized are also converted to lowercase, it is recommended to review the result before using it.

Which punctuation marks start a new sentence?

Only the period (.), the exclamation mark (!) and the question mark (?). A line break on its own does not produce a capital letter, and the dot in an abbreviation such as 'etc.' is read as the end of a sentence, so those are two things worth checking in the converted text.

Sentence Case or Title Case: which one should I use?

Use Sentence Case for running text, emails, articles and body copy, where only the first letter of each sentence is capitalized. Use Title Case for headlines and headings, where every main word starts with a capital letter. For that, use the Title Case Converter.

See also