🔡 Select a case style below to convert
📥 Input Text
0 chars
📤 Converted Text
0 chars
📝 Words: 0
🔤 Characters: 0
💬 Sentences: 0
🔡 Case Style: None
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📚 Case Style Reference Guide
Not sure which case to use? Here's a quick guide to all 12 supported case styles:
| Case Style | Example | Common Uses |
|---|---|---|
| UPPERCASE | HELLO WORLD | Headings, warnings, acronyms |
| lowercase | hello world | URLs, emails, CSS class names |
| Title Case | Hello World | Book titles, headlines, page titles |
| Sentence case | Hello world | Normal writing, paragraphs |
| camelCase | helloWorld | JavaScript, Java variables |
| PascalCase | HelloWorld | Class names, React components |
| snake_case | hello_world | Python, database columns, file names |
| kebab-case | hello-world | CSS classes, HTML attributes, URLs |
| CONSTANT_CASE | HELLO_WORLD | Constants in code (JS, Java, C++) |
| aLtErNaTe | hElLo WoRlD | Memes, social media humor |
| iNVERSE cASE | hELLO wORLD | Inverts existing capitalization |
| dot.case | hello.world | Config keys, object notation |
📖 How to Use the Case Converter
1
Paste or Type Your Text
Click the Input Text box on the left and paste your content using Ctrl+V (Windows) or Cmd+V (Mac), or simply start typing.
2
Choose a Case Style
Click any of the 12 case style buttons — such as UPPERCASE, Title Case, camelCase, or snake_case. The result appears instantly in the output box.
3
Copy the Result
Click Copy Result to copy the converted text to your clipboard. You can then paste it anywhere — a document, code editor, or email.
4
Try Different Styles
You can keep clicking different case buttons without re-pasting your text. The original input is always preserved so you can switch between styles freely.
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❓ Frequently Asked Questions
What is a case converter?
A case converter is an online tool that changes the capitalization style of text. For example, it can convert "hello world" to "HELLO WORLD" (uppercase), "Hello World" (Title Case), or "helloWorld" (camelCase) — all with a single click.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every major word — e.g. "The Quick Brown Fox Jumps Over The Lazy Dog."
Sentence case only capitalizes the first letter of the first word in each sentence — e.g. "The quick brown fox jumps over the lazy dog."
Sentence case only capitalizes the first letter of the first word in each sentence — e.g. "The quick brown fox jumps over the lazy dog."
What is camelCase and when should I use it?
camelCase joins words together without spaces, with each word after the first capitalized. Example:
myVariableName. It is most commonly used for naming variables and functions in JavaScript, Java, and Swift.
What is the difference between snake_case and kebab-case?
snake_case joins words with underscores:
kebab-case joins words with hyphens:
hello_world. It is common in Python and database naming.kebab-case joins words with hyphens:
hello-world. It is common in CSS class names, HTML attributes, and URLs.
Can I convert multiple paragraphs at once?
Yes! There is no limit. You can paste as much text as you want — the case converter handles full articles, code blocks, or entire documents. All conversions happen instantly in your browser.
Is my text stored or shared?
No. All conversions happen 100% inside your browser using JavaScript. Your text is never sent to any server, never saved, and never logged. It is completely private and secure.