Text Case Converter - camelCase, snake_case & More

Convert text between 10+ formats: camelCase, snake_case, PascalCase, kebab-case, CONSTANT_CASE and more

100% client-side · your data never leaves your browser
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ℹ️ How to Use
  • Type or paste text in the input field above
  • All case conversions appear automatically below
  • Click "Copy" to copy any conversion to clipboard
  • Supports programming cases (camelCase, snake_case, etc.)
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100% Client-Side Processing- Your text never leaves your browser

📖 How to Use

  1. Type or paste your text in the input field
  2. All case conversions appear automatically below
  3. Click the "Copy" button next to any conversion to copy it to clipboard
  4. View character count, word count, and line count statistics in real-time

About the Text Case Converter

The Text Case Converter is a free, browser-based tool designed for developers, writers, and content creators who need to quickly transform text between 10+ different case formats. Whether you're converting variable names between programming languages, formatting API identifiers, standardizing text for documentation, or refactoring code, this tool provides instant conversions with real-time character and word count statistics. Built with developers in mind, it supports all common coding conventions used in JavaScript, Python, Java, C#, Ruby, PHP, and more. All processing happens 100% client-side in your browser - your text never leaves your device, ensuring complete privacy and security for sensitive code or data.

Supported Case Formats:

  • Sentence case: First word capitalized, rest lowercase (e.g., "This is a sentence")
  • lower case: All characters lowercase (e.g., "all lowercase text")
  • UPPER CASE: All characters uppercase (e.g., "ALL UPPERCASE TEXT")
  • Title Case: First letter of each major word capitalized (e.g., "This Is Title Case")
  • Capitalize Each Word: First letter of every word capitalized (e.g., "Every Word Is Capitalized")
  • camelCase: No spaces, first word lowercase (e.g., "thisIsCamelCase")
  • PascalCase: No spaces, all words capitalized (e.g., "ThisIsPascalCase")
  • snake_case: Words separated by underscores, lowercase (e.g., "this_is_snake_case")
  • kebab-case: Words separated by hyphens, lowercase (e.g., "this-is-kebab-case")
  • CONSTANT_CASE: Words separated by underscores, uppercase (e.g., "THIS_IS_CONSTANT_CASE")

Key Features:

  • Real-time conversion: See all 10+ case formats instantly as you type
  • 100% client-side processing: Your text never leaves your browser - no data sent to servers
  • No registration required: Start converting immediately with no signup or login
  • Comprehensive stats: Real-time character count, word count, and line count
  • One-click copy: Copy buttons for each format output
  • All programming cases: Supports camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE
  • Standard cases: Sentence case, Title Case, UPPERCASE, lowercase, Capitalize Each Word
  • Mobile-friendly: Responsive interface with dark mode support
  • Fast & lightweight: No page reloads, instant results, minimal JavaScript
  • Privacy-focused: No tracking, no cookies, no data storage

Common Use Cases:

  • Code Refactoring: Convert variable names from one naming convention to another (e.g., camelCase to snake_case when porting JavaScript to Python, or PascalCase when moving to C# or Java)
  • API Development: Format endpoint names and parameter identifiers to match REST API conventions (kebab-case for URLs like /user-profile, camelCase for JSON keys like firstName)
  • Database Design: Convert field names to snake_case for PostgreSQL/MySQL tables (e.g., user_id, created_at) or CONSTANT_CASE for environment variables and configuration constants
  • Multi-language Projects: Quickly adapt variable names when working across Python (snake_case), JavaScript (camelCase), and C# (PascalCase) codebases
  • URL Slug Creation: Transform article titles or product names to kebab-case for SEO-friendly URLs (e.g., "My New Product" → "my-new-product")
  • Documentation Writing: Standardize text formatting in technical documentation, README files, and code comments

Case Format Reference:

Format Example Common Uses
camelCase myVariableName JavaScript, Java, C++, JSON keys
PascalCase MyClassName C#, Java, TypeScript classes
snake_case my_variable_name Python, Ruby, PostgreSQL, Rust
kebab-case my-variable-name URLs, CSS classes, file names
CONSTANT_CASE MY_CONSTANT_VALUE Constants, environment variables

❓ Frequently Asked Questions

What is a text case converter?

A text case converter is an online tool that transforms text between different capitalization styles like uppercase, lowercase, Title Case, and programming formats like camelCase or snake_case. It helps developers format variable names, convert user input, and standardize text formatting.

What is camelCase and when should I use it?

camelCase is a naming convention where the first word is lowercase and subsequent words start with uppercase letters, with no spaces (e.g., "myVariableName"). It's commonly used for variable and function names in JavaScript, Java, C#, and many other programming languages.

What's the difference between snake_case and kebab-case?

snake_case uses underscores to separate words (e.g., "my_variable_name") and is common in Python, Ruby, and database naming. kebab-case uses hyphens (e.g., "my-variable-name") and is commonly used in URLs, CSS class names, and file names.

When should I use CONSTANT_CASE?

CONSTANT_CASE (also called UPPER_SNAKE_CASE) is used for constants and environment variables in most programming languages. It uses all uppercase letters with underscores separating words (e.g., "MAX_RETRY_COUNT", "API_KEY").

What is PascalCase?

PascalCase (also called UpperCamelCase) capitalizes the first letter of every word with no spaces (e.g., "MyClassName"). It's commonly used for class names in object-oriented programming languages like C#, Java, and TypeScript.

Can I use this tool for code refactoring?

Absolutely! This tool is perfect for code refactoring tasks like converting between different naming conventions (camelCase to snake_case for Python, PascalCase for C# classes, etc.), formatting API endpoint names, or standardizing variable names across codebases. Simply paste your identifier, choose the target format, and copy the result.

How do I convert between different programming naming conventions?

Simply paste your text or variable name into the input field, and all 10+ case formats appear automatically below. For example, to convert from snake_case to camelCase, paste "my_variable_name" and instantly see "myVariableName" in the camelCase output. Click the copy button next to any format to use it in your code.

Is my text data secure when using this converter?

Yes, absolutely. All text conversion happens entirely in your browser using client-side JavaScript. Your text never leaves your device or gets sent to any server. We don't log, store, or track any of your data. This makes it safe to convert even sensitive code, variable names, or confidential text.

Can I convert large amounts of text?

Yes, our converter handles text of any reasonable size, from single words to entire paragraphs or multiple variable names. There is no character limit, and conversion happens instantly in real-time as you type. For very large texts (10,000+ characters), the tool maintains fast performance with no lag or delays.

Is this tool free to use?

Yes, this text case converter is completely free with no registration, signup, or payment required. All conversions happen instantly in your browser using 100% client-side processing, so your data never leaves your device, ensuring complete privacy and security.

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