Case Converter Online Free
Convert text to UPPERCASE, camelCase, snake_case, and 4 more formats instantly
No signup • No watermark • 100% Private • Completely Free
See the Result
Enter text above to see conversions
All 7 case formats will appear instantly
Why Use Our Free Case Converter?
Text Case Privacy
Convert text cases using JavaScript locally. Your content, code snippets, and documents stay on your device during case transformation.
7 Case Formats Instantly
Convert to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and PascalCase simultaneously. Perfect for coding, formatting, or text processing.
Unlimited Text Conversion
Convert entire documents, code files, or content libraries. No restrictions on text length or number of conversions per day.
Instant Converter Access
Start converting text cases immediately. No account creation, no email verification - just paste and convert.
How to Use
Paste your text
Type or paste any text into the input box above.
See all 7 cases
All case conversions appear instantly below as you type.
Copy what you need
Click any Copy button to grab the result you want.
Frequently Asked Questions
Is this case converter really free?
Yes, completely free. No hidden fees, no subscriptions, no credit card required.
Do I need to create an account?
No. Start immediately without signup or email verification.
Is my text saved or sent to a server?
No. All text conversion happens in your browser. Your text never leaves your device.
What is camelCase used for?
camelCase is the JavaScript naming convention for variables and functions. It's also used in Java, Swift, and many other programming languages.
What is snake_case used for?
snake_case is standard in Python, Ruby, and database column names. It's also commonly used in configuration files and environment variables.
What is kebab-case used for?
kebab-case is used in CSS classes, HTML attributes, URLs, and file names. It's the most common case for web development.
Does it support non-English characters?
Yes, the converter works with Unicode characters including accented letters, Cyrillic, Greek, and other alphabets.
💡Pro Tips: When to Use Each Case
- •camelCase is the JavaScript naming convention for variables and functions
- •snake_case is standard in Python and database column names
- •kebab-case is used in CSS classes and HTML attributes
- •Title Case is used for blog post headings and book titles
- •Sentence case is the standard for UI text and app copy
How the Case Converter works
The converter rewrites your text instantly as you click a style: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case. All processing happens in the page with JavaScript, so even long documents are converted immediately and privately.
The programming styles (camelCase, snake_case, kebab-case) split the text into words on spaces and punctuation, then join them with the style’s separator, which makes them useful for turning headings into variable names, file names or URL slugs.
Example: one phrase in every style
“free media tools guide” becomes FREE MEDIA TOOLS GUIDE, Free Media Tools Guide, Free media tools guide, freeMediaToolsGuide, free_media_tools_guide and free-media-tools-guide.
Tips for the best result
- Use kebab-case for URL slugs and file names, snake_case for Python variables and database columns, and camelCase for JavaScript.
- Sentence case is the easiest way to fix text that was accidentally typed with Caps Lock on.
- Check proper nouns after using Sentence case or lowercase; the tool cannot know which words are names.
Limitations to know
- Title Case capitalises every word; it does not apply style-guide rules such as keeping “and” or “of” lowercase.
- Programming styles remove punctuation, so they are not meant for full sentences.
Troubleshooting
- Acronyms such as “PDF” become “Pdf”
- Title and Sentence case lowercase the rest of each word. Fix acronyms manually after converting.
- Copy button does nothing
- Some browsers block clipboard access on non-secure pages or in private mode; select the text and press Ctrl+C instead.
Case Converter: common questions
Which case should I use for URLs?
kebab-case (lowercase words separated by hyphens) is the convention Google recommends for readable URLs.
Is there a length limit?
No fixed limit; very long texts are limited only by your browser.
Does it change my original text?
Only the text in the box. Nothing is saved or uploaded.