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Case converter

Change the case of any text with one click: UPPERCASE, lowercase, Title Case, Sentence case and more. Accents stay where they belong and each language keeps its own rules, so é becomes É, ß becomes SS and short words like of, de or und stay lowercase in titles.

Free and private. Everything runs in your browser, nothing is uploaded.

How it works

  1. Paste your textType or paste text, or open a text file.
  2. Pick a caseChoose UPPERCASE, lowercase, Title Case or another style, and the language rules.
  3. Copy the resultCopy it with one click or download it as a text file.

Why the language setting matters

Upper and lower case are not the same in every language. German ß becomes SS in capitals, Greek uses a different sigma at the end of a word, and Turkish and Azerbaijani have both a dotted and a dotless i. Title case differs too: English keeps of and the small, Spanish keeps de and la, German keeps und and der.

This converter applies the rules of the language you choose, for both letters and the short words that stay lowercase in titles. The language of the page is selected first and can be changed at any time.

Clean titles and sentences

Title Case capitalizes the important words and keeps short words such as a, of, and or the lowercase, except at the start and end of a title. Sentence case lowercases everything and capitalizes the first letter of each sentence, which is handy for text typed with caps lock on.

Frequently asked questions

Is my text uploaded?

No. Conversion happens in your browser and nothing is sent to our servers.

Why does the language setting change some letters?

Most letters convert the same way everywhere, but a few do not. If your text contains the Turkish letters İ or ı and another language is selected, the tool tells you, because those letters would change.

Are names and abbreviations kept?

Sentence case and Title Case lowercase other letters, so abbreviations like NASA become Nasa. Fix those by hand after converting, or use Capitalize Each Word for lists of names.

Does it work offline?

Yes. After you open the page once, it keeps working without an internet connection.