Case Converter

How to Use the Case Converter

The Case Converter transforms your text between different capitalization styles with a single click. Whether you accidentally typed in caps lock, need to format headings properly, or want to convert code variable names, this tool handles every text case transformation quickly and accurately.

Available Conversions

UPPERCASE: Converts all letters to capitals. "hello world" becomes "HELLO WORLD." Used for acronyms, headings, and emphasis in certain contexts.

lowercase: Converts all letters to small letters. "HELLO WORLD" becomes "hello world." Useful for normalizing data, email addresses, and URLs.

Title Case: Capitalizes the first letter of each word. "the quick brown fox" becomes "The Quick Brown Fox." Some styles lowercase articles and prepositions (a, an, the, of, in).

Sentence case: Capitalizes only the first letter of each sentence. "hello there. how are you?" becomes "Hello there. How are you?"

camelCase: Removes spaces and capitalizes each word except the first. "user first name" becomes "userFirstName." Standard in JavaScript and Java programming.

snake_case: Replaces spaces with underscores and lowercases everything. "User First Name" becomes "user_first_name." Common in Python and databases.

How to Use

Paste or type your text in the input area, then click the button for the desired case. The converted text appears in the output area, ready to copy. You can chain conversions, applying multiple transformations sequentially.

Programming Cases

Developers frequently need to convert between naming conventions: camelCase for JavaScript variables, PascalCase for class names, snake_case for Python, and kebab-case for CSS classes and URLs. This tool converts between all programming case styles.

Frequently Asked Questions

Q: Does the converter handle special characters and accented letters?

A: Yes. The converter correctly handles accented characters (e, n, u), special characters, and Unicode text. Numbers and symbols remain unchanged. Only alphabetic characters are affected by case conversion.

Q: What title case rules does the converter follow?

A: The converter offers two title case options: simple (capitalize every word) and AP/Chicago style (lowercase articles, short prepositions, and conjunctions unless they start the title). Choose the style appropriate for your context.

Q: Can I convert case in bulk?

A: Yes. There is no practical character limit. Paste entire documents, spreadsheet columns, or database exports. The converter processes text of any length instantly and preserves line breaks, tabs, and other whitespace formatting.