Case Converter
A handy online text tool where you can change between lower case and upper case letters, capitalize, uncapitalize, convert to mix case and transform your text instantly.
How to Use the Case Converter
Enter your text
Type or paste your text into the large editor box above. The tool automatically counts your words and characters in real-time.
Choose your case
Click any of the case buttons in the toolbar to instantly transform your entire text into the desired format.
Copy or Download
Once converted, click "Copy to Clipboard" to paste it anywhere, or "Download Text" to save it as a .txt file to your device.
Text Case Formats Explained
Sentence case: Capitalizes the first letter of each sentence and makes all other letters lowercase. It uses periods, exclamation marks, and question marks to detect sentence boundaries.
lower case: Uncapitalizes all letters in your text.
UPPER CASE: Capitalizes all letters in your text.
Capitalized Case: Capitalizes the first letter of every single word.
aLtErNaTiNg cAsE: Alternates between lowercase and uppercase letters throughout the text. Useful for memes or expressing a mocking tone.
Title Case: Capitalizes the first letter of major words, but keeps minor words (like "a", "an", "the", "and", "but", "or", "for", "nor", "on", "at", "to", "from", "by") lowercase unless they are the first word.
InVeRsE CaSe: Reverses the case of every letter. Uppercase becomes lowercase, and lowercase becomes uppercase.
Frequently Asked Questions
No, there is no strict limit. The tool runs entirely in your browser, so it can handle very large blocks of text, limited only by your device's memory.
Yes, absolutely. The conversion happens on your device using JavaScript. Your text is never sent to our servers, ensuring 100% privacy.
Sentence case works well for standard text by looking for punctuation marks (. ! ?) followed by a space. However, it may not perfectly recognize abbreviations (like "e.g." or "Mr.") as exceptions.