How to Convert Text Case Online Free
Our case converter instantly transforms text between different naming conventions used in programming. Simply enter your text and get instant conversions to camelCase, snake_case, PascalCase, kebab-case, and many other formats. Perfect for developers working across different programming languages and systems.
Comprehensive Case Conversion Features
14+ Case Formats
Support for all major case conventions including camelCase, PascalCase, snake_case, kebab-case, and more specialized formats.
Auto-Detection
Automatically detects the current case format of your input text and provides relevant conversion tips.
Instant Conversion
Real-time conversion as you type with immediate feedback and validation warnings for edge cases.
Bulk Operations
Copy individual conversions or export all formats at once for batch processing workflows.
Supported Case Conversion Formats
✓ camelCase
First word lowercase, subsequent words capitalized. Common in JavaScript and Java.
✓ PascalCase
All words capitalized, no spaces. Used for class names and components.
✓ snake_case
All lowercase with underscores. Popular in Python, Ruby, and database columns.
✓ kebab-case
All lowercase with hyphens. Common in URLs, CSS classes, and HTML attributes.
✓ SCREAMING_SNAKE_CASE
All uppercase with underscores. Used for constants and environment variables.
✓ Train-Case
Capitalized words with hyphens. Used in some APIs and header names.
When to Use Different Case Formats
Variable Names: Use camelCase for JavaScript/Java variables, snake_case for Python/Ruby, and PascalCase for class names across most languages.
API Design: Choose kebab-case or snake_case for endpoints and parameters to ensure consistency and readability.
Database Schema: Use snake_case for table and column names as it's widely supported and readable across different database systems.
File Organization: Use kebab-case or snake_case for file names to avoid issues with different operating systems and web servers.
Frequently Asked Questions
Which case format should I use for variables?
It depends on your programming language: JavaScript/Java use camelCase, Python/Ruby prefer snake_case, and most languages use PascalCase for class names. Follow your language's conventions.
Can I convert multiple lines at once?
Yes! Enter text with spaces, line breaks, or multiple words and our converter will handle them appropriately for each case format, treating them as separate words or components.
How does the auto-detection work?
Our tool analyzes the pattern of your input text and identifies which case format(s) it matches. This helps you understand the current format and choose appropriate conversions.
What happens to special characters?
Special characters are typically removed or replaced with appropriate separators depending on the target format. Numbers are preserved in most case formats.
Can I save my conversion history?
Yes! Your recent conversions are automatically saved locally in your browser. You can also export all conversions to a text file for future reference.
Is this tool suitable for API naming?
Absolutely! Use kebab-case for REST API endpoints and snake_case or camelCase for JSON properties, depending on your API style guide and target language conventions.