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Case Converter
Quickly switch your text between uppercase, lowercase, title case, sentence case, and more.
Anúncio Google — 728×90
Anúncio Google — 320×100
How it works
This tool lets you instantly format any block of text into various letter-case structures. Perfect for formatting headers, cleaning accidental caps lock, or correcting sentence spacing.
Frequently asked questions
Is the text I type sent to any server?
No. All transformations happen client-side using native JavaScript directly in your browser. Your text is never stored or transmitted.
How does 'Sentence case' work?
It capitalizes the first letter of each sentence and lowercases the rest, detecting sentence bounds using periods, question marks, and exclamation marks.
Is this mobile friendly?
Yes! The layout is fully responsive and optimized for smartphones and tablets.
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