Text Case Converter - camelCase, UPPERCASE & More
Free online text case converter! Instantly convert text to 12+ formats including camelCase, PascalCase, snake_case, kebab-case, UPPERCASE, lowercase, Title Case, and more. Perfect for developers, writers, and data processing.
💡 Quick Examples:
📚 Common Use Cases:
- Programming: Convert variable names to camelCase, PascalCase, or snake_case
- URLs: Convert titles to kebab-case for SEO-friendly URLs
- Constants: Convert to CONSTANT_CASE for configuration values
- Titles: Format headings with proper Title Case capitalization
- Data Processing: Normalize text data across different formats
- Code Refactoring: Quickly change naming conventions in projects
Features
🔤 12+ Case Formats
Supports UPPERCASE, lowercase, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, Title Case, Sentence case, aLtErNaTiNg, and inverse.
⚡ Instant Conversion
All conversions happen in real-time as you type. See results instantly without clicking any buttons.
📋 One-Click Copy
Copy any converted format to clipboard with a single click. No manual selection needed.
💼 Programming Formats
Perfect for developers - supports all common programming naming conventions like camelCase, PascalCase, and snake_case.
🔗 URL-Friendly Format
Convert titles to kebab-case for SEO-friendly URLs and slugs.
📝 Format Examples
Each format shows an example and description to help you choose the right one.
📖 Text Case Formats Explained
camelCase
First word lowercase, subsequent words capitalized, no spaces. Common in JavaScript, Java, and most programming languages for variable and function names.
PascalCase
Every word capitalized, no spaces. Used for class names in most programming languages (C#, Java, JavaScript, Python classes).
snake_case
Words separated by underscores, all lowercase. Common in Python, Ruby, and database naming conventions.
kebab-case
Words separated by hyphens, all lowercase. Perfect for URLs, CSS class names, and HTML attributes. SEO-friendly for web slugs.
CONSTANT_CASE
Words separated by underscores, all uppercase. Used for constants and environment variables in most programming languages.
Title Case
First letter of each word capitalized. Used for titles, headings, and proper formatting in documents and articles.
💼 Common Use Cases
For Programmers & Developers
- Convert variable names between naming conventions (refactoring)
- Format API endpoints and JSON keys consistently
- Generate database column names from descriptions
- Create constants from configuration values
- Format class and function names according to style guides
For Web Developers & SEO
- Convert blog titles to URL-friendly slugs (kebab-case)
- Generate CSS class names from descriptions
- Format HTML element IDs consistently
- Create SEO-optimized URLs from page titles
- Normalize data attributes for consistency
For Content Writers & Editors
- Format headings and titles with proper capitalization
- Convert SHOUTING TEXT to normal case
- Fix inconsistent capitalization in documents
- Generate social media hashtags from phrases
- Format product names consistently
For Data Processing
- Normalize column names in CSV/Excel files
- Convert database field names between systems
- Format JSON object keys consistently
- Standardize API response field names
- Clean up imported data with mixed case
Frequently Asked Questions
What is camelCase and when should I use it?
camelCase is a naming convention where the first word is lowercase and subsequent words are capitalized without spaces (e.g., userName, getUserProfile). Use it for: (1) Variable names in JavaScript, Java, C++, Swift, (2) Function/method names in most object-oriented languages, (3) JSON object properties and keys, (4) Local variables and parameters. It's the default naming convention for most programming languages and makes multi-word identifiers readable without spaces or separators.
When should I use snake_case vs kebab-case?
Use snake_case (user_name) for: Python variables/functions, Ruby code, database column names, file names in some systems, and environment variables. Use kebab-case (user-name) for: URLs and web slugs (SEO-friendly), CSS class names, HTML attributes, file names for web assets, and package names. The key difference: hyphens in kebab-case work better in URLs since underscores can be harder to see when underlined. Programming languages prefer snake_case because hyphens are interpreted as minus operators.
What's the difference between PascalCase and camelCase?
Both use capital letters for word boundaries without spaces, but PascalCase capitalizes the first letter (UserProfile) while camelCase keeps it lowercase (userProfile). Use PascalCase for: Class names (JavaScript, Python, Java, C#), Component names (React, Vue, Angular), Type names and interfaces (TypeScript), Constructor functions. Use camelCase for: Variable names, Function/method names, Object properties, Local parameters. This distinction helps developers immediately recognize whether something is a class/type or a variable/function.
How do I create SEO-friendly URLs from titles?
Use kebab-case to convert titles to URL slugs. Example: "How to Learn JavaScript Fast" becomes "how-to-learn-javascript-fast". Benefits: (1) Readable by humans and search engines, (2) Hyphens are treated as word separators by Google, (3) Improves SEO compared to underscores or camelCase, (4) Consistent with web standards. Additional tips: Remove special characters, convert spaces and underscores to hyphens, make all lowercase, limit length to 3-5 words when possible. Avoid using underscores in URLs as Google treats them differently.
What is CONSTANT_CASE used for?
CONSTANT_CASE (all uppercase with underscores) indicates values that never change during program execution. Common uses: (1) Configuration constants (API_BASE_URL, MAX_RETRY_COUNT), (2) Environment variables (DATABASE_HOST, SECRET_KEY), (3) Mathematical constants (PI, EULER_NUMBER), (4) Status codes (HTTP_OK, ERROR_NOT_FOUND), (5) Magic numbers that need names. This convention originated in C and is used across most programming languages. It makes constants immediately recognizable and prevents accidental modification. In modern JavaScript, combine with const for immutability.
Can I convert between different programming naming conventions?
Yes! This tool is perfect for converting between conventions when: (1) Refactoring code to match a style guide, (2) Translating between languages (Python snake_case to JavaScript camelCase), (3) Converting database fields (snake_case) to API responses (camelCase), (4) Adapting legacy code to modern standards, (5) Normalizing imported data. Common conversions: snake_case → camelCase for Python to JavaScript, camelCase → kebab-case for API routes, CONSTANT_CASE → snake_case for configuration files. Just paste your text and instantly see all format options.
What is Title Case and when should I use it?
Title Case capitalizes the first letter of each word (except small words like "a," "the," "of" in formal title case). Use for: (1) Article and blog post titles, (2) Book and movie titles, (3) Headings in documents, (4) Product names, (5) Section titles. Note: This tool uses simple Title Case (capitalizes every word). Formal title case has exceptions for articles, prepositions, and conjunctions. For programming, use PascalCase instead. For SEO URLs, convert to kebab-case. For data, use camelCase or snake_case depending on your language.
How do different programming languages handle naming conventions?
Different languages have different standards: JavaScript/TypeScript: camelCase for variables/functions, PascalCase for classes. Python: snake_case for everything except classes (PascalCase). Ruby: snake_case for methods/variables, CamelCase for classes. Java/C#: camelCase for variables/methods, PascalCase for classes. Go: camelCase private, PascalCase exported. PHP: camelCase or snake_case depending on framework. CSS: kebab-case for class names. SQL: often snake_case for tables/columns. Following language conventions improves code readability and makes collaboration easier. This tool helps you quickly convert between them.