Case Converter

Enter Your Text

Converted Text

How to Use the Case Converter

Enter Your Text: Type or paste the text you want to convert into the input box at the top. You can enter anything from a single word to multiple paragraphs.
Choose a Case Format: Click on any of the case conversion buttons to transform your text. Options include Uppercase, Lowercase, Title Case, Sentence case, camelCase, snake_case, and more.
View the Result: The converted text will instantly appear in the output box below the buttons.
Copy or Continue: Use the "Copy Result" button to copy the converted text to your clipboard. Or click "Use as Input" if you want to convert it further to another case format.
Start Fresh: Click "Clear All" to remove all text and start over.

This tool is perfect for formatting text for different purposes - from making text all caps for emphasis, to converting variable names between programming conventions.

Features of Our Case Converter

Instant Conversion

Get your converted text immediately with no waiting.

Programming Cases

Includes camelCase, snake_case, and kebab-case for developers.

Title & Sentence Case

Perfect for headlines, titles, and proper formatting.

One-Click Copy

Copy converted text to clipboard instantly.

Chain Conversions

Use output as input for multiple conversions.

Mobile Friendly

Works perfectly on all devices and screen sizes.

Understanding Text Case Formats

UPPERCASE (All Caps)

All letters are converted to capital letters. Used for emphasis, headers, acronyms, and making text stand out.

Example: "hello world" → "HELLO WORLD"

Common Uses: Headlines, warning messages, emphasis, military time, acronyms

lowercase (All Small)

All letters are converted to lowercase. Used for casual writing, coding conventions, and uniformity.

Example: "Hello World" → "hello world"

Common Uses: URLs, email addresses, hashtags, casual communication

Title Case

The first letter of each major word is capitalized. Articles, conjunctions, and short prepositions are typically lowercase unless they're the first or last word.

Example: "the quick brown fox" → "The Quick Brown Fox"

Common Uses: Book titles, article headlines, movie titles, document headers

Sentence case

Only the first letter of the first word is capitalized, just like in normal sentences. Proper nouns should remain capitalized.

Example: "The Quick Brown Fox" → "The quick brown fox"

Common Uses: Body text, paragraphs, email content, regular writing

camelCase

Words are joined together without spaces, with each word after the first starting with a capital letter. The name comes from the "humps" created by capital letters.

Example: "hello world" → "helloWorld"

Common Uses: JavaScript variables, Java methods, C# properties, JSON keys

Programming Languages: Java, JavaScript, C#, Swift

snake_case

Words are written in lowercase and separated by underscores. Also known as "underscore case."

Example: "hello world" → "hello_world"

Common Uses: Python variables, Ruby methods, PHP constants, database table names

Programming Languages: Python, Ruby, Rust, PHP

kebab-case

Words are written in lowercase and separated by hyphens. Also called "dash case" or "hyphen case."

Example: "hello world" → "hello-world"

Common Uses: CSS class names, HTML attributes, URLs, file names

Web Development: CSS classes, URL slugs, HTML data attributes

SCREAMING_SNAKE_CASE

All uppercase letters with underscores between words. Used for constants in many programming languages.

Example: "hello world" → "HELLO_WORLD"

Common Uses: Constants, environment variables, configuration keys

When to Use Each Case Format

Writing & Content: Title Case for headlines, Sentence case for body text, UPPERCASE for emphasis
Web Development: kebab-case for CSS classes and URLs, camelCase for JavaScript
Python Development: snake_case for variables and functions
Java/C# Development: camelCase for variables, PascalCase for classes
Database: snake_case for table and column names
Configuration: SCREAMING_SNAKE_CASE for constants and environment variables

Frequently Asked Questions

How do I convert text case online?

Simply paste or type your text into our case converter, then click on any of the conversion buttons: Uppercase, Lowercase, Title Case, Sentence Case, camelCase, or snake_case. The converted text will appear instantly and you can copy it with one click.

What is camelCase?

camelCase is a naming convention where words are joined together without spaces, and each word except the first starts with a capital letter. For example: 'helloWorld', 'myVariableName', 'getUserInfo'. It's commonly used in programming for variable and function names, especially in JavaScript, Java, and C#.

What is snake_case?

snake_case is a naming convention where words are written in lowercase and separated by underscores. For example: 'hello_world', 'my_variable_name', 'get_user_info'. It's commonly used in Python, Ruby, and for database naming. When written in all caps (HELLO_WORLD), it's often used for constants.

Is this case converter free?

Yes, this case converter is completely free to use. No registration, no limits, no ads. Convert as much text as you need, as many times as you want. All processing happens in your browser for complete privacy.

Can I convert multiple cases at once?

Yes! You can convert your text to any case format one by one. Start with your original text, convert it to one format, then click "Use as Input" to convert that result to another format. This allows you to chain multiple conversions without retyping. The tool preserves your original input until you clear it.

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

Title Case capitalizes the first letter of every major word: "The Quick Brown Fox Jumps". Sentence case only capitalizes the first letter of the first word (and proper nouns): "The quick brown fox jumps". Title Case is used for headlines and titles, while Sentence case is used for normal writing and body text.

Does this tool work with special characters and numbers?

Yes! The case converter handles special characters, numbers, and punctuation correctly. Numbers remain unchanged, and special characters are preserved. Only alphabetic characters are affected by the case conversion. This makes it safe to use with code, URLs, email addresses, and formatted text.

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Free Online Case Converter