Case Converter: UPPERCASE, Title Case, camelCase & More

What is a case converter? A case converter changes the capitalization of text, uppercase, lowercase, Title Case, Sentence case, aLtErNaTiNg case, camelCase, and snake_case, without changing the letters themselves. It runs entirely in your browser, so nothing you type is sent to a server.

When to Use Each Case Style

Title Case is for headlines, article titles, and video titles. This converter capitalizes the first letter of every word, so lowercase small words such as and, of and the by hand if your style guide asks for it. Sentence case is for normal writing: captions, bios, and body text, where only the first word and proper nouns get capitalized.

aLtErNaTiNg case and inverse case are stylistic choices popular in usernames and meme text rather than formal writing. camelCase and snake_case come from programming conventions but work well for usernames and hashtags on platforms that do not allow spaces.

Case Conversion and Fancy Fonts

Case conversion only works on standard letters. If you want to apply a bold, cursive, or gothic Unicode style on top of your text, convert the case first here, then paste the result into the Font Generator to style it.

One Sentence in Every Case Style

This table shows what each button does to the same line, the quick brown fox jumps over the lazy dog. The Inverse row uses The Quick Brown Fox, because inverse case flips capitals and lowercase, so a title shows the effect best.

Style	Result
UPPERCASE	THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
lowercase	the quick brown fox jumps over the lazy dog
Title Case	The Quick Brown Fox Jumps Over The Lazy Dog
Sentence case	The quick brown fox jumps over the lazy dog
aLtErNaTiNg	tHe QuIcK bRoWn FoX jUmPs OvEr ThE lAzY dOg
InVeRsE	tHE qUICK bROWN fOX
camelCase	theQuickBrownFoxJumpsOverTheLazyDog
snake_case	the_quick_brown_fox_jumps_over_the_lazy_dog

Which Case Style for Which Job

Job	Style	Why
Headline or video title	Title Case	Every word starts with a capital, which suits titles.
Caption, bio or message	Sentence case	Reads like normal writing.
Hashtag with several words	camelCase	Capital letters mark where each word starts, which helps people and screen readers.
File name or code variable	snake_case	No spaces, so it is safe in file names and code.
Joke or meme text	aLtErNaTiNg	A style choice, not for serious writing.
Text typed in caps lock	lowercase then Sentence case	Turns shouting into normal text.

How to Fix Text Typed in Caps Lock in 3 Steps

Paste the text into the box above.
Press Sentence case. The first letter of each sentence is capitalised and everything else is lowercase.
Copy the result and fix names and acronyms by hand, since the converter cannot tell that a word is a name.

Case Converter FAQ

What is the difference between title case and sentence case?

Title Case capitalizes the first letter of most words (commonly skipping short words like a, the, and, of), the way book and article titles are styled. Sentence case capitalizes only the first letter of the sentence and any proper nouns, the way normal prose is written. Title case is for headlines, sentence case is for body text.

Does converting case change the actual characters, or just how they display?

It changes the actual characters. Uppercase A and lowercase a are different Unicode code points, not the same character displayed differently, so converting case produces genuinely different text, not a visual style applied on top of the original.

Why would I use camelCase or snake_case outside of programming?

camelCase and snake_case are mainly used in code (variable names, file names, URLs), but some people also use them stylistically in usernames or hashtags to remove spaces while keeping words readable, since most platforms do not allow spaces in usernames or hashtags.

Can I convert case on text that already has fancy Unicode fonts applied?

No. Case conversion works on standard Latin letters (A-Z, a-z). Fancy Unicode font characters, like bold or cursive styles from a font generator, are separate Unicode code points that do not have defined uppercase or lowercase mappings, so case conversion will not affect them. Convert case first, then apply fancy styling.

How do I fix text I typed in all caps?

Paste it into the converter and press Sentence case. Check names and acronyms afterwards, because they will be lowercase until you capitalise them.

Why does Title Case capitalise small words like and and of?

This converter capitalises the first letter of every word. Many style guides keep small words lowercase, so change those by hand if your guide asks for it.

Are camelCase hashtags better?

Many people find them easier to read, and screen readers can pronounce each word separately. Use camelCase for hashtags with several words.

Case ConverterUPPERCASE, Title Case & More