🔡 Case Converter

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case with a single click. Perfect for writers, developers, and content creators.

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About the Case Converter

Quickly convert text between different letter cases with our free online case converter. Whether you're a writer fixing accidental Caps Lock, a developer naming variables, or a content creator formatting headlines - this tool saves you from manually retyping text.

Understanding Different Cases

UPPERCASE

All letters are capital. Use for: headings, acronyms, emphasis, warnings.

Example: HELLO WORLD - THIS IS UPPERCASE TEXT

lowercase

All letters are small. Use for: URLs, casual writing, code variables.

Example: hello world - this is lowercase text

Title Case

First letter of each word is capital. Use for: titles, book names, movie titles, headings.

Example: Hello World - This Is Title Case Text

Sentence case

Only first letter of sentence is capital. Use for: regular writing, articles, emails.

Example: Hello world - this is sentence case text

camelCase

First word lowercase, subsequent words capitalized, no spaces. Use for: JavaScript variables, Java methods, programming.

Example: helloWorld, getUserProfile, calculateTotalAmount

snake_case

Lowercase words separated by underscores. Use for: Python variables, database columns, URLs.

Example: hello_world, get_user_profile, calculate_total_amount

Common Use Cases

Fixing Caps Lock Mistakes: Accidentally typed in CAPS? Convert to lowercase or sentence case
Formatting Titles: Convert book/article titles to proper Title Case
Email Subject Lines: Convert to Title Case for professional appearance
Programming: Convert variable names between camelCase and snake_case
SEO Titles: Convert to Title Case for better search appearance
Social Media: Format hashtags, captions, and posts properly

How to Use 🔡 Case Converter

Step 1: Paste Your Text
Click the text area and paste or type the text you want to convert.
Step 2: Choose Target Case
Click one of the six case buttons: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, or snake_case.
Step 3: View Converted Text
The converted text appears instantly in the result box below.
Step 4: Copy the Result
Click the Copy button to copy the converted text to your clipboard.
Step 5: Paste Anywhere
Paste the formatted text into your document, code, email, or wherever needed.

Frequently Asked Questions

What's the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word (Hello World Example). Sentence case capitalizes only the first letter of the entire text (Hello world example).

When should I use camelCase vs snake_case?

camelCase is used in JavaScript, Java, and C++. snake_case is used in Python, Ruby, and most databases. PascalCase (similar to Title Case without spaces) is used for class names.

Does the tool preserve special characters?

Yes! Numbers, punctuation, and special characters are preserved. Only letters are affected by case conversion.

Can I convert text in Hindi or other languages?

The tool works with Unicode text, but case conversion only applies to languages that have upper/lowercase (English, Spanish, French, etc.). Hindi doesn't have case distinction.

Why doesn't Title Case capitalize 'and' or 'the'?

True Title Case rules don't capitalize articles, conjunctions, and prepositions (a, an, the, and, or, but, etc.). Our converter uses standard case conversion - capitalize every word. For perfect title case, you may need to manually lowercase these small words.

Is there a limit on text length?

No practical limit - convert anywhere from a single word to entire articles. Performance is instant for normal text sizes.

Can I undo a conversion?

Just click another case button to reconvert. The original text in the input box is preserved, so you can experiment freely.