Case Converter

How to Use the Case Converter

This free online case converter transforms text between UPPER CASE, lower case, Title Case, camelCase, PascalCase, snake_case, kebab-case, and Sentence case instantly in your browser. Whether you're naming variables across programming languages, formatting document headings, or cleaning up imported data, this tool handles every common text case convention with a single click.

Step-by-Step

1. **Paste or type your text** into the input field.

Click a case format — Choose from 8 different case styles. The conversion happens instantly.

Copy the result — Use the Copy button to grab the converted text.

The tool preserves your original input so you can quickly try multiple formats without retyping.

Supported Formats

UPPER CASE — All letters capitalized. Great for constants and headings.

lower case — All letters lowercase. Standard for normalization.

Title Case — First letter of each word capitalized. Perfect for headings and titles.

Sentence case — Only the first letter of the first word capitalized. Natural prose style.

camelCase — First word lowercase, subsequent words capitalized. Standard in JavaScript and Java.

PascalCase — Every word capitalized, no separators. Used for class names in C#, TypeScript, and React components.

snake_case — Words separated by underscores. Python convention and database column standard.

kebab-case — Words separated by hyphens. Used in CSS classes, URL slugs, and CLI commands.

Common Use Cases

Variable Name Conversion — Switching between JavaScript's camelCase and Python's snake_case when porting code or working across languages.

CSS Class Naming — Convert descriptive text to kebab-case for CSS class names and BEM methodology.

Database Schema Work — Convert PascalCase model names to snake_case column names for PostgreSQL or MySQL.

Content Formatting — Transform ALL CAPS text from legacy systems into proper Title Case or Sentence case for display.

URL Slug Generation — Convert article titles or product names into URL-friendly kebab-case slugs.

Tips for Power Users

- When converting from camelCase or PascalCase, the tool intelligently detects word boundaries at capital letters and inserts the appropriate separator.

- Converting from snake_case or kebab-case to camelCase properly handles existing separators.

- Use UPPER CASE for environment variable names and constants (MAX_RETRIES, API_BASE_URL).

- PascalCase is the React convention for component names — convert your descriptive text directly to a valid component name.

- Chain this tool with the Text Cleaner to first normalize whitespace, then convert case.

Why Use This Tool?

All text transformation happens instantly in your browser using JavaScript string operations — no server calls, no data collection. It's perfect for developers who frequently switch between programming language naming conventions. Unlike IDE-specific case conversion, this tool works with any text from any source and gives you all eight formats at once so you can pick the right one without trial and error.