Sentence Case Converter

Convert text to sentence case so each sentence starts with a capital letter.

How to use Sentence Case Converter

1. Enter Text. 2. Text remains in the browser. Words are groups of letters or numbers. Apostrophes, hyphens and underscores stay inside a word. Character counts use Unicode code points, which can differ from visible symbols. This punctuation heuristic does not infer abbreviations, proper names or language-specific grammar. 3. Select Convert or press Enter from a single-line field. In multiline text fields, Enter inserts a line break. 4. Select Copy result to copy the answer, or Reset to clear the form and result.

Why use this tool?

Use Sentence Case Converter when you need sentence case text. Text remains in the browser. Words are groups of letters or numbers. Apostrophes, hyphens and underscores stay inside a word. Character counts use Unicode code points, which can differ from visible symbols. This punctuation heuristic does not infer abbreviations, proper names or language-specific grammar.

How the calculation works

Lowercase text then capitalise a letter at the beginning or after . ! ? plus whitespace. Text remains in the browser. Words are groups of letters or numbers. Apostrophes, hyphens and underscores stay inside a word. Character counts use Unicode code points, which can differ from visible symbols. This punctuation heuristic does not infer abbreviations, proper names or language-specific grammar.

Example

Worked example: Text = "hELLO. wORLD!". Result: Hello. World!.

Practical tip

Check the sentence case input and output convention before reusing the result.