Case Converter
Transform text between uppercase, lowercase, title case, sentence case, and more. Free, instant, and unlimited text case conversion.
Converted Text (click to copy)
Sentence Case
Capitalize the first letter of each sentence
lowercase
Convert all letters to lowercase
UPPERCASE
Convert all letters to uppercase
Capitalized Case
Capitalize the first letter of each word
Title Case
Proper title case with exceptions for small words
aLtErNaTiNg CaSe
Alternate between lowercase and uppercase
InVeRsE CaSe
Swap uppercase and lowercase letters
How to Use Case Converter
Enter Text
Type or paste your text into the input area. The text can be in any case format.
View Conversions
See your text instantly converted to 7 different case styles below the input area.
Copy Result
Click the "Copy" button next to any conversion to copy it to your clipboard and use it anywhere.
Why Use Our Case Converter?
Instant Conversion
See all 7 case styles update in real-time as you type. No waiting, no delays.
7 Case Styles
Convert to sentence case, lowercase, UPPERCASE, Title Case, and more in one place.
One-Click Copy
Copy any converted text to your clipboard instantly with a single click.
Smart Title Case
Proper title case that follows grammar rules by keeping small words lowercase.
Private & Secure
All conversions happen in your browser. Your text never leaves your device.
100% Free
No ads, no hidden costs, no signup required. Unlimited conversions forever.
Frequently Asked Questions
What is sentence case?
Sentence case capitalizes only the first letter of each sentence and proper nouns (though this tool doesn't detect proper nouns). All other letters are lowercase. This is the standard format for regular writing.
What's the difference between Capitalized Case and Title Case?
Capitalized Case (also called Start Case) capitalizes the first letter of every word. Title Case follows traditional title formatting rules by keeping small words like "a", "the", "and", "of" in lowercase unless they're at the beginning or end.
When should I use UPPERCASE?
UPPERCASE is commonly used for acronyms, headings, or emphasis in informal writing. Use it sparingly in regular text as it can be perceived as shouting in digital communication.
What are alternating and inverse cases used for?
Alternating case (aLtErNaTiNg) and inverse case (InVeRsE) are typically used for stylistic or humorous effect in social media, memes, or creative content. They're not used in professional writing.
Does this work with special characters and numbers?
Yes! The converter preserves all special characters, numbers, and punctuation. Only alphabetic characters (A-Z, a-z) are converted between cases.
Can I convert text in other languages?
The tool works best with English text using the Latin alphabet. It will convert any Unicode letters that have uppercase/lowercase variants, but may not follow language-specific capitalization rules for other languages.
Is my text saved or stored anywhere?
No! All text conversion happens locally in your browser using JavaScript. Your text is never uploaded to any server or stored anywhere. Close the page and it's gone.
How do I use converted text in Word or Google Docs?
After converting your text, click the "Copy" button next to your preferred case style. Then paste (Ctrl+V or Cmd+V) into any application like Word, Google Docs, email, or social media.