✅ 100% Free - No Credit Card Required

Free Case Converter

The ultimate text formatter. Convert your text to Uppercase, Lowercase, Title Case, or developer formats like CamelCase and Snake_Case instantly.

Last Updated: 15 Jan 2026

0 Characters

0 Words

0 Lines

What is Text Case Conversion?

Text case conversion is the process of changing the capitalization style of text. Whether you accidentally left CAPS LOCK on, need to format text for code, or want to improve readability, case conversion tools instantly transform text between different capitalization styles.

Common case styles include UPPERCASE (all caps), lowercase (all small), Title Case (capitalize major words), Sentence case (capitalize first word), and programming conventions like camelCase, snake_case, and kebab-case. Each style serves different purposes in writing, coding, and content creation.

Why Use Our Free Case Converter?

Instant Conversion

Convert text case instantly as you type or paste. No delays, no server requests. All conversion happens in your browser for maximum speed.

Multiple Formats

Support for standard writing cases (uppercase, lowercase, title case) and programming conventions (camelCase, snake_case, kebab-case) in one tool.

Privacy First

All text conversion happens entirely in your browser. Your text never leaves your device, ensuring complete privacy and security.

Common Use Cases for Case Conversion

Writing & Content

Fix Accidental CAPS LOCK
Quickly convert text typed with CAPS LOCK accidentally enabled. Transform "HELLO WORLD" to "Hello World" or proper sentence case instantly.
Title Formatting
Format article titles, blog post headings, or document titles to proper Title Case for professional presentation and consistency.
Email & Communication
Convert email subject lines, social media posts, or messages to appropriate case styles for better readability and professionalism.

Programming & Development

Variable Naming
Convert text to camelCase (JavaScript, Java), snake_case (Python, SQL), or kebab-case (CSS, URLs) for consistent code formatting and naming conventions.
API Development
Format API endpoint names, JSON keys, or database column names to match your project's coding standards and conventions.
Code Refactoring
Convert variable names, function names, or constants between different case styles when refactoring code or migrating between languages.

Understanding Different Case Styles

Standard Writing Cases

UPPERCASE: ALL LETTERS CAPITALIZED. Used for emphasis, headings, or acronyms.

lowercase: all letters small. Used for casual writing or specific formatting needs.

Title Case: First Letter Of Each Major Word Capitalized. Used for titles, headings, and formal writing.

Sentence case: Only the first letter capitalized, like normal sentences. Used for body text and readable content.

Programming Conventions

camelCase

JavaScript, Java, C#

snake_case

Python, SQL, Ruby

kebab-case

CSS, URLs, HTML

Choose Your Style

Select the case style that matches your needs: standard writing formats for content, or programming conventions for code.

Convert Instantly

Paste or type your text, click the conversion button, and get instantly formatted text ready to copy and use.

Frequently Asked Questions

What is Title Case?

Title Case capitalizes the first letter of each major word, often used for headlines (e.g., 'The Quick Brown Fox'). Our tool follows standard style guides for title capitalization.

How do I fix accidental CAPS LOCK?

Simply paste your text and click 'Sentence case'. It will convert 'HELLO WORLD' to 'Hello world' instantly, saving you from retyping everything.

What is the difference between Title Case and Sentence Case?

Title Case capitalizes major words (nouns, verbs, adjectives), while Sentence Case only capitalizes the first word. Title Case: 'The Quick Brown Fox'. Sentence Case: 'The quick brown fox'.

Can I convert between programming cases?

Yes! Our tool supports camelCase, snake_case, and kebab-case conversions. Perfect for converting variable names between different programming languages or coding standards.

Does case conversion preserve special characters?

Yes, special characters, numbers, and punctuation remain unchanged. Only letter capitalization is modified according to the selected case style.

Is my text stored when using this tool?

No, all conversion happens entirely in your browser. Your text never leaves your device, ensuring complete privacy and security. We don't store or transmit any data.