Text Case Converters

Convert text to uppercase, lowercase, title case, camelCase, snake_case, and more. Perfect for formatting code, titles, and content.

What It Does

Text Case Converters transform text between different capitalization styles instantly. Convert text to UPPERCASE (all caps), lowercase (all small), Title Case (capitalize first letter of each word), camelCase (first word lowercase, subsequent words capitalized), snake_case (words separated by underscores), and kebab-case (words separated by hyphens). This tool is essential for developers formatting variable names, function names, and code identifiers according to different naming conventions. It's also useful for writers, content creators, and anyone needing to standardize text capitalization across documents, titles, headings, or data processing workflows. The converter handles multiple words intelligently, preserves special characters, and works with any text length.

Key Features:

  • UPPERCASE: Convert all letters to capital letters
  • lowercase: Convert all letters to small letters
  • Title Case: Capitalize first letter of each word
  • camelCase: First word lowercase, subsequent words capitalized (no spaces)
  • snake_case: Words separated by underscores, typically lowercase
  • kebab-case: Words separated by hyphens, typically lowercase
  • Preserves numbers, special characters, and punctuation
  • Instant conversion with one-click operations

How To Use

Paste your text and click the desired case format button to instantly transform your text. Perfect for code formatting, content creation, or data standardization.

1

Enter Your Text

Paste or type the text you want to convert into the input field. The text can be a single word, multiple words, sentences, or even paragraphs. The converter handles any length of text.

2

Select Case Format

Click the button for your desired case format: UPPERCASE for all caps, lowercase for all small, Title Case for proper capitalization, camelCase for JavaScript-style variables, snake_case for Python-style variables, or kebab-case for CSS class names and URLs.

3

Copy Converted Text

The converted text appears instantly in the output field. Click the copy button to copy it to your clipboard, then paste it into your code editor, document, or application.

Pro Tips

  • •camelCase is standard for JavaScript variable and function names
  • •snake_case is common in Python, Ruby, and database column names
  • •kebab-case is preferred for CSS class names, HTML IDs, and URL slugs
  • •Title Case is standard for article titles and headings
  • •UPPERCASE is often used for constants and configuration values
  • •The converter preserves numbers and special characters in their original positions

Benefits

Code Formatting: Quickly format variable names according to language conventions
Content Standardization: Ensure consistent capitalization across documents
Time Saving: Avoid manual capitalization corrections
Naming Conventions: Follow language-specific naming standards automatically
Data Processing: Standardize text data for databases and APIs
Accessibility: Convert text for screen readers and assistive technologies
URL Generation: Create URL-friendly slugs from titles using kebab-case

Use Cases

JavaScript Variable Naming

Convert descriptive phrases to camelCase for JavaScript variables. Example: "user first name" becomes "userFirstName", "calculate total price" becomes "calculateTotalPrice". This follows JavaScript naming conventions where variables and functions use camelCase, making code more readable and consistent.

Input: "get user profile data" → Output: "getUserProfileData"

Python Variable Naming

Convert to snake_case for Python variables and functions. Example: "user first name" becomes "user_first_name", "calculate total price" becomes "calculate_total_price". Python PEP 8 style guide recommends snake_case for function and variable names.

Input: "get user profile" → Output: "get_user_profile"

CSS Class Names

Create kebab-case class names for CSS. Example: "primary button" becomes "primary-button", "navigation menu item" becomes "navigation-menu-item". Kebab-case is the standard for CSS class names and HTML IDs because it's URL-safe and readable.

Input: "main content area" → Output: "main-content-area"

Article Titles and Headings

Format titles to Title Case for articles, blog posts, and document headings. Example: "how to learn javascript" becomes "How To Learn Javascript", "the complete guide to web development" becomes "The Complete Guide To Web Development". Title Case improves readability and follows publishing standards.

Input: "introduction to react hooks" → Output: "Introduction To React Hooks"

Database Column Names

Standardize database column names to snake_case. Example: "user email address" becomes "user_email_address", "order total amount" becomes "order_total_amount". Most SQL databases use snake_case for column names, and this converter ensures consistency.

Input: "product category name" → Output: "product_category_name"

Configuration Constants

Convert configuration keys to UPPERCASE for constants. Example: "maximum retry attempts" becomes "MAXIMUM_RETRY_ATTEMPTS", "api base url" becomes "API_BASE_URL". UPPERCASE constants are a common convention in many programming languages to distinguish constants from variables.

Input: "database connection timeout" → Output: "DATABASE_CONNECTION_TIMEOUT"

Frequently Asked Questions

1 What's the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (e.g., "userName", "calculateTotal"), while PascalCase (also called UpperCamelCase) starts with an uppercase letter (e.g., "UserName", "CalculateTotal"). camelCase is used for variables and functions in JavaScript, Java, and C#. PascalCase is used for class names and constructors. Our tool provides camelCase (starting lowercase). For PascalCase, you can use Title Case and remove spaces, or manually capitalize the first letter after using camelCase.
2 When should I use snake_case vs kebab-case?
Use snake_case for: Python/Ruby variable names, database column names, file names in some systems, and configuration keys. Use kebab-case for: CSS class names, HTML IDs and attributes, URL slugs, command-line arguments, and package names. The main difference is the separator: underscores (_) for snake_case, hyphens (-) for kebab-case. Choose based on your language or framework conventions. For example, React uses camelCase for JavaScript but kebab-case for CSS classes, while Python uses snake_case for everything.
3 Does the converter handle special characters and numbers?
Yes, the converter preserves numbers, special characters, and punctuation in their original positions. For example, "user123_name" in camelCase becomes "user123Name", "test-case_v2" in kebab-case becomes "test-case-v2". Numbers and special characters remain unchanged—only letter capitalization is modified. This ensures that identifiers with numbers (like "api_v2", "user123") maintain their structure while converting case style.
4 Can I convert code with multiple variables at once?
Yes, you can paste multiple lines of text and convert them all at once. However, the converter treats the entire input as one text block. If you have multiple separate identifiers (like "user_name", "order_total", "product_price"), you can convert them together, but they'll be treated as one continuous text. For best results with multiple separate items, convert them individually or use a text editor with find-and-replace for bulk conversions. The converter works best for single identifiers, titles, or phrases.
5 What case format should I use for API endpoints?
REST API endpoints typically use kebab-case or snake_case for readability and URL compatibility. Examples: "/api/user-profile", "/api/order-items", "/api/product-categories". Avoid camelCase in URLs as some systems are case-sensitive and it can cause confusion. Kebab-case is preferred for URLs because hyphens are more readable than underscores in browser address bars. Some APIs use camelCase (especially GraphQL), but kebab-case is more common for REST APIs. Check your API framework's conventions.

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