Text Case Converter
Change text to UPPERCASE, lowercase, Title Case, Sentence case and more in one click. Undo any change.
Which case should I use?
| Case | Example | Typical use |
|---|---|---|
| UPPERCASE | THE QUICK BROWN FOX | Short labels, acronyms, emphasis |
| lowercase | the quick brown fox | Usernames, tags, URLs |
| Title Case | The Lord of the Rings | Headlines, titles, headings |
| Sentence case | The quick brown fox. It ran away. | Body text, many modern headings |
| Capitalized Case | The Quick Brown Fox | Names lists, some buttons and labels |
| aLtErNaTiNg | tHe QuIcK bRoWn FoX | Playful or ironic social posts |
| iNVERSE cASE | tHE qUICK bROWN fOX | Fixing text typed with Caps Lock on |
How Title Case works here
Every word starts with a capital letter, except short articles, conjunctions and prepositions such as “a”, “and”, “of”, “the” and “to”. Those stay lowercase unless they are the first or last word of a line or follow a colon. Words that are already all capitals, such as NASA, are kept as they are.
Style guides (AP, Chicago, APA, MLA) have slightly different Title Case rules, especially for longer prepositions. Check your guide for formal publishing.
How Sentence case works here
All text is made lowercase, then the first letter of each sentence and of each new line is capitalized, along with the word “I”. Names and acronyms become lowercase too, so check them afterwards.
How to use it
- Paste or type your text, or open a file.
- Click the case you want. The text is converted in place.
- Click Undo to go back, or Copy to copy the result.
Frequently asked questions
How do I change uppercase text to lowercase?
Paste the text and click lowercase. To keep capitals at the start of sentences, click Sentence case instead.
Does it work with other languages?
Yes. It uses your browser’s language rules, so accented and non-Latin letters such as é, ß and ж are converted correctly.
Can I undo a conversion?
Yes. Undo goes back one step at a time, up to 20 steps.
Is my text stored anywhere?
No. The conversion happens in your browser.