TEXT TOOL

Case Converter

Change the capitalisation of any text in one click: uppercase, lowercase, title case, sentence case or alternating case.

Your text

Converted text

How to use the Case Converter

Paste your text, then press the button for the style you want. Your original stays in the top box, so you can try several styles without retyping.

What each style does

Title Case capitalises the main words and keeps short words such as “of”, “and” and “the” lower case unless they start or end the text. Sentence case capitalises the first letter of each sentence and lowers the rest. Alternating switches between lower and upper case on every letter.

Examples and uses

the quick brown fox jumps over the lazy dog becomes The Quick Brown Fox Jumps Over the Lazy Dog in title case.
HELLO. HOW ARE YOU? becomes Hello. How are you? in sentence case.

Limitations and good to know

Sentence case and title case cannot know which words are names or acronyms, so proper nouns such as “London” or “NASA” will be lowered and may need a manual fix. Title-case rules differ between style guides; this tool uses a common English convention.

Frequently asked questions

Is my text sent to a server?

No. The conversion runs entirely in your browser.

Does it work with accented letters?

Yes. It uses Unicode-aware case rules, so letters such as é and ñ convert correctly.

Can I undo a conversion?

Your original text stays in the top box and is never changed, so you can simply convert again.

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