Case Converter
ZourTools Case Converter changes capitalization across long files or single strings. Switch between upper, lower, sentence, title, camel, and other case formats instantly.
Convert Text Capitalization
How to Change Text Case
Enter Your Text
Type or paste the text you want to reformat into the workspace area.
Choose the Target Case
Select a format such as UPPER CASE, lower case, Title Case, Sentence case, camelCase, snake_case, or others.
Save the Adjusted Text
Watch the text update instantly, then click the copy button to export it.
What Is Case Conversion?
Case conversion is the process of changing the capitalization of text. Different situations call for different capitalization styles—from all uppercase for headings to lowercase for casual text, from title case for book titles to camelCase for programming variables. ZourTools Case Converter handles all these transformations instantly, saving you from manual retyping.
Why Convert Text Case?
Case conversion serves many practical purposes. Writers need to format headings, titles, and sentences according to style guides. Programmers need to convert between naming conventions like camelCase, snake_case, and PascalCase. Social media users want to emphasize text with ALL CAPS or create stylistic effects. Whatever your need, our tool provides the right case format instantly.
Key Features
- Multiple Case Formats: UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case.
- Instant Conversion: Text transforms immediately upon clicking.
- Character Statistics: View original and converted character counts.
- Word and Line Counts: See total words and lines in your text.
- Copy to Clipboard: One-click copying of converted text.
- No Registration: Start converting immediately.
- Browser-Based: Your text never leaves your device.
- Unlimited Length: Convert text of any size.
Case Formats Explained
UPPER CASE
Converts all characters to uppercase. "Hello World" becomes "HELLO WORLD". Used for headings, acronyms, and emphasis.
lower case
Converts all characters to lowercase. "Hello World" becomes "hello world". Used for casual text and certain formatting styles.
Title Case
Capitalizes the first letter of each word. "hello world" becomes "Hello World". Used for titles, headings, and names.
Sentence case
Capitalizes the first letter of each sentence. "hello world. how are you?" becomes "Hello world. How are you?". Used for standard prose.
camelCase
First word lowercase, subsequent words capitalized, no spaces. "hello world" becomes "helloWorld". Used in programming (JavaScript, Java).
PascalCase
All words capitalized, no spaces. "hello world" becomes "HelloWorld". Used in programming (C#, classes).
snake_case
All lowercase with underscores between words. "hello world" becomes "hello_world". Used in programming (Python, databases).
kebab-case
All lowercase with hyphens between words. "hello world" becomes "hello-world". Used in URLs and CSS classes.
Common Use Cases
Writing and Editing
Format headings, titles, and sentences according to style guides.
Programming
Convert between naming conventions when refactoring code or adapting to different languages.
Data Cleanup
Standardize capitalization in datasets, lists, or databases.
Social Media
Create emphasis with ALL CAPS or stylistic effects with alternate casing.
Web Development
Generate URL slugs (kebab-case) or CSS class names from text.
Frequently Asked Questions
Does case conversion change my text's meaning?
No, only capitalization changes. The words remain the same.
What's the difference between Title Case and Sentence case?
Title Case capitalizes every word. Sentence case capitalizes only the first letter of each sentence.
Which programming case should I use?
It depends on your language: camelCase for JavaScript/Java, snake_case for Python, PascalCase for C# classes, kebab-case for URLs/CSS.
Can I convert text with numbers and symbols?
Yes, numbers and symbols are preserved. Only letters are affected by case conversion.
Is the tool free?
Yes, ZourTools Case Converter is completely free, with no limitations.