Convert Case
Change text to uppercase, lowercase, title case, etc.
What Is the Convert Case Tool?
The Convert Case tool lets you paste any text and instantly reformat it into a different letter case by clicking one button. It covers seven options: Sentence case, lower case, UPPER CASE, Capitalized Case, Alternating case, Title Case, and Inverse Case. It is the kind of tool that saves you from retyping something that just arrived in the wrong format, which honestly happens more than it should.
Writers, developers, and editors use it most, but it comes up for anyone who copies text from one place and needs it cased differently before it goes somewhere else.
How to Use This Tool
- Paste or type your text into the input box above.
- Click whichever case button matches what you need: Sentence case, lower case, UPPER CASE, Capitalized Case, Alternating case, Title Case, or Inverse Case.
- The text in the box updates immediately to the selected format. No separate submit step.
- Copy the result using the Copy button, or select and copy manually.
When Would You Use This?
Fixing text that was typed or pasted in all caps or all lowercase before dropping it into a document, email, or form where the casing needs to look right.
Converting headings or titles to proper Title Case for a blog post, presentation slide, or product listing, without having to go through word by word and capitalize manually.
Cleaning up exported or copied content from spreadsheets, databases, or old CMS systems where text often comes out in inconsistent or shouted casing that needs to be brought down to something readable.
Examples
Sentence case
Input : THIS IS A SAMPLE SENTENCE FOR TESTING.
Output : This is a sample sentence for testing.
lower case
Input : The Quick Brown Fox Jumps Over The Lazy Dog
Output : the quick brown fox jumps over the lazy dog
UPPER CASE
Input : the quick brown fox jumps over the lazy dog
Output : THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
Capitalized Case
Input : the quick brown fox jumps over the lazy dog
Output : The Quick Brown Fox Jumps Over The Lazy Dog
Title Case
Input : the quick brown fox jumps over the lazy dog
Output : The Quick Brown Fox Jumps over the Lazy Dog
Alternating case
Input : hello world
Output : hElLo WoRlD
Inverse Case
Input : Hello World
Output : hELLO wORLD
Frequently Asked Questions
What is sentence case?
Sentence case means only the first letter of the first word in a sentence is capitalized, and everything else is lowercase, the same way a normal written sentence looks. Proper nouns are sometimes an exception depending on the context.
What is title case?
Title case capitalizes the first letter of most words in a phrase or heading. Small words like "a", "an", "the", "and", and prepositions are often left lowercase, though style guides differ on the exact rules.
What is the difference between title case and capitalized case?
Title case follows specific rules about which words get capitalized, typically skipping short connecting words. Capitalized Case (sometimes called Start Case) simply capitalizes the first letter of every single word without exception.
How do I convert text to uppercase?
Paste your text into the input box and click the UPPER CASE button. Every letter will be converted to capitals instantly.
How do I convert text to lowercase?
Paste your text and click the lower case button. All letters are converted to lowercase regardless of how they were originally written.
What is alternating case?
Alternating case switches between uppercase and lowercase for each character in sequence. So "hello" becomes something like "hElLo". It is mainly used for stylistic or decorative purposes.
What is inverse case?
Inverse case flips the casing of every letter. Uppercase letters become lowercase and lowercase letters become uppercase. If your text is "Hello World" it becomes "hELLO wORLD".
How do I change text case in Word?
In Microsoft Word you can use Shift+F3 to cycle through case options, or go to Home and click the Change Case button. For quick one-off conversions outside of Word, pasting into this tool is faster and gives you more format options in one place.
How do I convert text case in Excel?
Excel has three functions for this: UPPER(), LOWER(), and PROPER(). There is no built-in alternating or sentence case function. For those formats, this tool is more direct.
Can I convert text case online for free?
Yes. This tool is free and runs in your browser. Paste your text, click the case format you want, and copy the result. No account needed.