Text Case Converter
Paste your text, choose a case and copy the result.
Drop your file hereTap to choose a file
or click to browse, or paste from the clipboard
Four case styles
Switch between Sentence case, Title Case, UPPERCASE and lowercase from one menu. The result updates on every keystroke and change of style, and your original stays in the input box.
Layout and punctuation stay put
Only letters change. Line breaks, spacing, numbers, punctuation and emoji come through as you entered them, so a list, an address block or rows pasted from a spreadsheet keep their shape.
Runs in your browser
The conversion is done by the page itself, on a phone or a computer. Your text is not uploaded or saved, and it is gone when you leave the tool. Copy the result to the clipboard or download it as a UTF-8 text file.
How to change the case of your text
- 1
Paste or type your text in the Original text box.
- 2
Choose Sentence case, Title Case, UPPERCASE or lowercase under Letter case.
- 3
Check the Result box, which updates as you type or switch style.
- 4
Select Copy result, or Download result to save a UTF-8 text file.
What people use this tool for
- Fix a paragraph or email typed with Caps Lock on without retyping it.
- Give a list of headings, product names or column labels consistent Title Case.
- Lowercase a batch of email addresses, tags or filenames before an import.
- Turn an ALL CAPS quote or notice into readable sentence case.
Frequently Asked Questions
How do I change text from uppercase to lowercase or sentence case?
Paste the text into the Original text box and pick a style under Letter case. Sentence case is selected when the page opens, which is usually the right fix for a paragraph typed with Caps Lock on. The converted text appears in the Result box straight away.
What is the difference between sentence case and title case?
Sentence case lowercases everything, then capitalizes the first letter of the text, of each new line and of each sentence that follows a period, question mark, exclamation mark or ellipsis. Title case capitalizes the first letter of every word. Use sentence case for body text and captions, and title case for headings, labels and names.
How does title case treat small words, hyphens and apostrophes?
Every word gets a capital, including short words such as a, of and the. The tool does not apply the AP, APA or Chicago rules that keep those lowercase. Both halves of a hyphenated word are capitalized (Well-Known), and a letter after an apostrophe stays lowercase (Don't). Check ordinals such as 3rd, because a letter that follows a digit is treated as the start of a word.
What happens to acronyms, names and the word I?
Sentence case and title case lowercase the whole text before capitalizing, so NASA becomes nasa or Nasa. In sentence case, names such as london and the pronoun i stay lowercase, because the tool has no dictionary of proper nouns. Read the result once and correct those words after pasting.
Why is a word capitalized in the middle of a sentence?
Sentence case starts a new sentence after any period, question mark or exclamation mark that is followed by a space. Abbreviations such as e.g., Dr. and approx. end in a period, so the word after them is capitalized. Every line break also starts a new sentence, which suits lists but can catch text that was wrapped by hand.
Does it work with accented letters and other alphabets?
Yes. Any script that has upper and lower case is converted, including accented Latin letters, Greek and Cyrillic. English casing rules are used, so the German ß becomes SS in uppercase and Turkish i and ı follow English rather than Turkish rules. Scripts without letter case, such as Arabic or Chinese, pass through unchanged.
Is there a limit, and is my text stored?
You can convert up to 250,000 characters at a time. Beyond that the tool shows a message instead of a result. Nothing is sent to a server or written to your browser's storage: the text exists only in the page while it is open.
Can it produce camelCase, snake_case or alternating caps?
No. This tool covers the four everyday writing styles. It does not build camelCase, snake_case or kebab-case, and has no alternating case. For decorative lettering such as bold, italic or small caps, use the Font Generator, which swaps letters for Unicode look-alikes.