Text Case Converter
Convert text between different cases: uppercase, lowercase, title case, camelCase, snake_case, and more
Interactive tool
Input text
What is a Text Case Converter?
A text case converter is a tool that transforms text between different letter casing formats. It helps developers, writers, and content creators quickly convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case, and other formats commonly used in programming and writing.
How to Use This Text Case Converter
- 1Paste or type your text in the input field
- 2Select the desired case format from the options (uppercase, lowercase, camelCase, etc.)
- 3The converted text appears instantly
- 4Copy the result to your clipboard or download it as a file
Key features
Multiple Case Formats
Convert to 14+ different case formats including programming conventions
Instant Conversion
Real-time text conversion as you type or select options
Programming Cases
Support for camelCase, PascalCase, snake_case, kebab-case, and more
Writing Cases
Title case, sentence case, and uppercase for content writing
Batch Conversion
Convert large blocks of text in one operation
Copy & Download
Copy converted text to clipboard or download as file
100% Private
All processing happens in your browser, no server upload
Free Forever
No registration, no limits, completely free
Why Use a Text Case Converter?
Text case conversion is essential in programming and content creation. Developers need consistent naming conventions (camelCase for JavaScript, snake_case for Python), while writers need proper capitalization for titles and sentences. This tool eliminates manual conversion, reduces errors, and ensures consistency across your code or content.
Common use cases
- Converting variable names between programming conventions
- Formatting text for different programming languages
- Creating consistent naming in code documentation
- Converting titles to title case for articles and headings
- Standardizing database column names
- Formatting API endpoint names
- Converting text for CSS class names
- Preparing content for different style guides
Common Case Formats Explained
- camelCase: First word lowercase, subsequent words capitalized (myVariableName)
- PascalCase: All words capitalized, no spaces (MyClassName)
- snake_case: All lowercase, words separated by underscores (my_variable_name)
- kebab-case: All lowercase, words separated by hyphens (my-css-class)
- CONSTANT_CASE: All uppercase with underscores (MY_CONSTANT_VALUE)
- Title Case: First letter of each word capitalized (My Article Title)
- Sentence case: First letter capitalized, rest lowercase (My sentence here)
Programming Language Conventions
Different programming languages have different naming conventions. JavaScript and TypeScript use camelCase for variables and PascalCase for classes. Python prefers snake_case for variables and functions. Ruby uses snake_case throughout. CSS uses kebab-case for class names. Understanding and using the correct convention makes your code more readable and maintainable.
Tips & best practices
Match your language convention
Use camelCase for JavaScript, snake_case for Python, and PascalCase for class names
Be consistent
Stick to one naming convention throughout your project for better readability
Use CONSTANT_CASE for constants
Global constants and environment variables are typically written in all caps with underscores
Title case for headings
Use title case for article titles, headings, and user-facing text
kebab-case for URLs
URL slugs and CSS class names typically use kebab-case for SEO and readability
Privacy & security
This text case converter runs entirely in your web browser. Your text is never uploaded to any server, stored in any database, or transmitted anywhere. All conversions happen locally on your device. It is 100% private and secure.
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Frequently Asked Questions
What is a text case converter?
A text case converter is a tool that transforms text between different letter casing formats such as uppercase, lowercase, title case, camelCase, snake_case, kebab-case, and more. It is especially useful for developers and writers who need consistent formatting.
What is the difference between camelCase and snake_case?
camelCase capitalizes the first letter of each word except the first one, with no spaces (example: myVariableName). snake_case uses all lowercase letters with underscores separating words (example: my_variable_name). JavaScript typically uses camelCase, while Python prefers snake_case.
When should I use CONSTANT_CASE?
CONSTANT_CASE (all uppercase with underscores) is typically used for global constants, environment variables, and configuration values that should not change during program execution. Examples include API_KEY, MAX_RETRIES, or DATABASE_URL.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of each major word (Hello World), commonly used for article titles and headings. Sentence case only capitalizes the first letter of the first word (Hello world), used for regular sentences and modern UI text.
Is my text data safe when using this tool?
Yes, this text case converter runs entirely in your web browser. Your text is never uploaded to any server or stored anywhere. All conversions happen locally on your device, ensuring 100% privacy.