Case Converter
Convert text to uppercase, lowercase, title case, sentence case, camelCase, and more. Free online tool with real-time preview. No signup, 100% private.
Live Preview (Click to Apply)
UPPERCASE
lowercase
Title Case
Sentence case
camelCase
PascalCase
snake_case
kebab-case
How to Use Case Converter
Enter Your Text
Type or paste your text into the input box. You can enter a single word, a sentence, a paragraph, or multiple paragraphs. The tool supports unlimited text length.
Choose Your Format
Select the case format you need from the buttons below. You can also click on any preview card to apply that format instantly.
View Results
See your converted text instantly in the output area. The live preview shows all formats at once for easy comparison.
Copy and Use
Click the "Copy Result" button to copy the converted text to your clipboard, then paste it wherever you need it.
Frequently Asked Questions
What is a case converter?
A case converter is a tool that changes the capitalization of text. It can convert text to uppercase, lowercase, title case, sentence case, and various programming formats like camelCase and snake_case.
What is the difference between title case and sentence case?
Title Case capitalizes the first letter of each major word (e.g., "The Quick Brown Fox"). It's used for headlines, book titles, and article titles. Sentence case only capitalizes the first letter of each sentence (e.g., "The quick brown fox."). It's used for regular paragraphs, blog posts, and emails.
How do I convert text to uppercase?
Simply paste your text into the input box and click the "UPPERCASE" button. All letters will be converted to capital letters. Numbers and special characters remain unchanged.
What is camelCase and when should I use it?
camelCase is a naming convention where words are joined together, the first word starts with a lowercase letter, and each subsequent word starts with a capital letter (e.g., "myVariableName"). It's commonly used in programming for variable names, function names, and object properties in languages like JavaScript, Java, and Python.
Is this case converter free?
Yes, this case converter is completely free to use with no limitations. There's no signup required, no usage limits, and no hidden fees.
Is my text data safe?
Yes, your text is 100% safe. All text processing happens locally in your browser. Your text is never sent to any server or stored anywhere. Once you close the page, your text is gone.
Can I convert multiple lines at once?
Yes, you can paste multiple lines or paragraphs of text, and the converter will process all of them at once. Each line will be converted according to the selected format.
What is the difference between PascalCase and camelCase?
Both are programming naming conventions. camelCase starts with a lowercase letter (e.g., "myVariable"), while PascalCase starts with an uppercase letter (e.g., "MyVariable"). camelCase is typically used for variables and functions, while PascalCase is used for classes and types.
Complete Guide to Text Case Formats
UPPERCASE (All Caps)
Converts all letters to capital letters. Use for:
- Headlines and titles for emphasis
- Acronyms and abbreviations (NASA, FBI)
- Warning labels and important notices
- Social media emphasis
lowercase
Converts all letters to small letters. Use for:
- URLs and file paths
- Hashtags and social media handles
- Code and programming identifiers
- Casual messaging
Title Case
Capitalizes the first letter of each major word. Articles, conjunctions, and prepositions are usually not capitalized unless they're the first word. Use for:
- Book and movie titles
- Article headlines
- Essay titles
- Professional documents
Sentence Case
Capitalizes only the first letter of each sentence. Use for:
- Regular paragraphs
- Blog posts and articles
- Emails and correspondence
- Academic papers
Programming Naming Conventions
| Format | Example | Use Case |
|---|---|---|
| camelCase | myVariableName |
Variables, functions (JavaScript, Java) |
| PascalCase | MyClassName |
Classes, types (C#, TypeScript) |
| snake_case | my_variable_name |
Variables, functions (Python, Ruby) |
| kebab-case | my-variable-name |
URLs, CSS classes, file names |
| CONSTANT_CASE | MY_CONSTANT |
Constants (all languages) |
When to Use Each Format
| Context | Recommended Format | Reason |
|---|---|---|
| Academic Papers | Sentence case | Standard academic convention |
| Headlines | Title Case | Professional appearance |
| Social Media | lowercase or UPPERCASE | Style preference |
| Programming | camelCase/snake_case | Language convention |
| URLs | kebab-case | SEO-friendly, readable |
About Case Converter
Convert text to uppercase, lowercase, title case, sentence case, camelCase, and more. Free online tool with real-time preview. No signup, 100% private.