Case Converter
Convert text between different letter cases including uppercase, lowercase, title case, camelCase, snake_case, and more. Perfect for writers, developers, and anyone working with text formatting.
Convert Text Case
Enter your text and select the desired case conversion:
Instantly transform your text to any case format
Understanding Text Case Formats
Text case refers to the capitalization style of letters in written text. Different case formats serve different purposes in writing, programming, and communication.
Case Format Guide
| Format | Example | Use Case | Description |
|---|---|---|---|
| UPPERCASE | HELLO WORLD | Headlines, emphasis | All letters capitalized |
| lowercase | hello world | Casual writing | All letters in lowercase |
| Title Case | Hello World | Titles, headlines | First letter of each word capitalized |
| Sentence case | Hello world | General writing | Only first letter of first word capitalized |
| camelCase | helloWorld | Programming | Each word except first starts with capital |
| snake_case | hello_world | Programming | Words separated by underscores, all lowercase |
| kebab-case | hello-world | URLs, CSS | Words separated by hyphens, all lowercase |
| PascalCase | HelloWorld | Programming | Each word starts with capital letter |
๐ก Pro Tip: camelCase and PascalCase are commonly used in programming languages like JavaScript, Java, and C#. snake_case is popular in Python and Ruby, while kebab-case is used in CSS class names and URLs.
Programming Language Conventions
๐ Python
Variables: snake_case
Constants: UPPERCASE
Classes: PascalCase
โ Java
Variables: camelCase
Classes: PascalCase
Constants: UPPERCASE
๐ JavaScript
Variables: camelCase
Functions: camelCase
Classes: PascalCase
Constants: UPPERCASE
๐จ CSS
Classes: kebab-case
IDs: camelCase
Variables: kebab-case
Writing Style Guidelines
- Academic Writing: Sentence case for most text, Title Case for headings
- Journalism: Sentence case for body text, Title Case for headlines
- Legal Documents: Sentence case with proper nouns capitalized
- Social Media: Mixed case depending on platform style
- Technical Writing: Consistent case following documentation standards
Case Conversion in Different Languages
| Language | Uppercase Example | Special Characters |
|---|---|---|
| German | STRASSE | ร โ SS |
| French | RUE | รฉ โ ร, รง โ ร |
| Spanish | CALLE | รฑ โ ร, รก โ ร |
| Turkish | SOKAK | ฤฑ โ I, i โ ฤฐ |
Common Use Cases
๐จโ๐ป Developers
Convert between programming naming conventions
Rename variables and functions
Format code comments
โ๏ธ Writers
Format titles and headlines
Ensure consistent styling
Convert between writing styles
๐ Data Processing
Standardize database entries
Clean imported data
Normalize text fields
๐จ Content Creation
Format social media posts
Create consistent branding
Design typography styles
Text Case Best Practices
- Consistency: Use the same case style throughout your document
- Readability: Choose cases that enhance rather than hinder reading
- Context: Match the case to the medium and audience
- Standards: Follow established conventions for your field
- Accessibility: Ensure sufficient contrast and readability
Advanced Text Processing
Beyond basic case conversion, modern text processing includes:
- Unicode Support: Handling international characters and symbols
- Smart Capitalization: Preserving proper nouns and acronyms
- Context Awareness: Understanding sentence boundaries and punctuation
- Language Detection: Applying appropriate rules for different languages