Case Converter
Convert text between uppercase, lowercase, title case, sentence case, and more. Perfect for formatting text quickly for any purpose.
Why Use Our Case Converter?
Instant Conversion
See all case variations at once as you type. No need to convert one at a time.
10 Case Types
From basic uppercase/lowercase to developer-friendly camelCase and snake_case.
One-Click Copy
Click any converted result to copy it instantly to your clipboard.
Privacy First
All conversion happens in your browser. Your text is never sent anywhere.
Developer Friendly
Includes camelCase, PascalCase, snake_case, and kebab-case for coding.
Always Free
No registration, no limits, no hidden costs. Use as much as you need.
Understanding Text Cases
Different text cases serve different purposes in writing, programming, and design. Here's when to use each case type:
UPPERCASE
Headlines, acronyms, emphasis, legal documents, buttons
lowercase
Email addresses, URLs, casual tone, minimalist design
Title Case
Book titles, headlines, article titles, proper nouns
Sentence case
Regular paragraphs, descriptions, natural reading flow
camelCase
JavaScript variables, JSON keys, programming conventions
snake_case
Python variables, database columns, file names
Related Tools
- Word Counter - Count words and characters
- Text Repeater - Repeat text multiple times
- Slug Generator - Create URL-friendly slugs
Frequently Asked Questions
What is the difference between Title Case and Sentence case?â–¼
Title Case capitalizes the first letter of every word (e.g., "The Quick Brown Fox"). Sentence case only capitalizes the first letter of each sentence (e.g., "The quick brown fox"). Title Case is used for headlines and titles, while Sentence case is used for regular paragraphs.
When should I use camelCase vs snake_case?â–¼
camelCase is the convention in JavaScript, Java, and C# for variable names (e.g., myVariableName). snake_case is preferred in Python, Ruby, and for database column names (e.g., my_variable_name). Choose based on your programming language's conventions.
What is kebab-case used for?â–¼
kebab-case (also called hyphen-case) is commonly used for URL slugs, CSS class names, and file names. It's readable and works well in contexts where underscores or spaces aren't ideal (e.g., "my-blog-post-title").
Does Title Case capitalize all words?â–¼
Our Title Case capitalizes the first letter of every word. Some style guides (like APA or Chicago) have rules about not capitalizing small words like "a", "the", "and" - but for simplicity and universal use, we capitalize everything.
Can I convert text with special characters?â–¼
Yes! Our converter handles text with special characters, numbers, and punctuation. Case conversion only affects letters (A-Z), so numbers and symbols remain unchanged.
What is Toggle Case?â–¼
Toggle Case (or inverse case) swaps uppercase and lowercase letters. "Hello World" becomes "hELLO wORLD". It's often used for stylistic effects or to correct text that was accidentally typed with Caps Lock on.