Text Case Converter

Transform text between UPPERCASE, lowercase, Title Case, Sentence case, and more with a single click.

📝 Enter Your Text

📤 Result

About Text Case Conversion

Text case conversion is the process of changing the capitalization pattern of text. This is a common need for writers, programmers, data analysts, and anyone who works with text regularly. Whether you accidentally typed an entire paragraph in caps lock, need to format headings consistently, or want to convert text to a programming naming convention, a case converter saves significant time compared to manual editing.

Case Types Explained

Sentence case capitalizes only the first letter of each sentence and proper nouns, following standard English grammar. This is the most natural reading format and is recommended for body text, email content, and most general writing.

Title Case capitalizes the first letter of every major word. It is commonly used for headlines, article titles, book titles, and headings. Style guides differ on whether to capitalize short prepositions and articles (like "a", "the", "in"), but this tool capitalizes all words for simplicity.

camelCase joins words together without spaces, capitalizing the first letter of each word except the first. It is the standard naming convention for variables and functions in JavaScript, Java, and many other programming languages.

snake_case replaces spaces with underscores and converts all letters to lowercase. It is the preferred naming convention in Python and Ruby, and is commonly used for database column names and file naming.

kebab-case replaces spaces with hyphens and uses all lowercase letters. It is widely used for CSS class names, URL slugs, and file names in web development.

Frequently Asked Questions

Does this tool handle non-English characters?
Yes. The case converter uses JavaScript's built-in string methods which support Unicode. It correctly handles accented characters (like é, ñ, ü), Cyrillic, Greek, and other scripts that have uppercase and lowercase forms.
What is Toggle Case used for?
Toggle case inverts the capitalization of each character — uppercase becomes lowercase and vice versa. It is primarily useful for fixing text that was accidentally typed with Caps Lock on, instantly reversing the mistake.
Which case should I use for my website headings?
Title Case is the most common choice for headings in English. However, Sentence case is gaining popularity in modern web design (used by Google, Apple, and many tech companies) as it feels more natural and approachable.
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